default search action
Christine Tanner
Person information
Refine list
refinements active!
zoomed in on ?? of ?? records
view refined list in
export refined list as
2020 – today
- 2021
- [j15]Firat Özdemir, Zixuan Peng, Philipp Fürnstahl, Christine Tanner, Orcun Goksel:
Active learning for segmentation based on Bayesian sample queries. Knowl. Based Syst. 214: 106531 (2021) - 2020
- [i8]Firat Özdemir, Christine Tanner, Orcun Goksel:
Delineating Bone Surfaces in B-Mode Images Constrained by Physics of Ultrasound Propagation. CoRR abs/2001.02001 (2020)
2010 – 2019
- 2019
- [j14]Rastislav Starkov, Lin Zhang, Michael Bajka, Christine Tanner, Orcun Goksel:
Ultrasound simulation with deformable and patient-specific scatterer maps. Int. J. Comput. Assist. Radiol. Surg. 14(9): 1589-1599 (2019) - [j13]Rastislav Starkov, Christine Tanner, Michael Bajka, Orcun Goksel:
Ultrasound simulation with animated anatomical models and on-the-fly fusion with real images via path-tracing. Comput. Graph. 82: 44-52 (2019) - [j12]Neerav Karani, Lin Zhang, Christine Tanner, Ender Konukoglu:
An image interpolation approach for acquisition time reduction in navigator-based 4D MRI. Medical Image Anal. 54: 20-29 (2019) - [c64]Hector Dejea, Christine Tanner, Radhakrishna Achanta, Marco Stampanoni, Fernando Pérez-Cruz, Ender Konukoglu, Anne Bonnin:
Synchrotron X-Ray Phase Contrast Imaging and Deep Neural Networks for Cardiac Collagen Quantification in Hypertensive Rat Model. FIMH 2019: 187-195 - [c63]Andrawes Al Bahou, Christine Tanner, Orcun Goksel:
Scatgan for Reconstruction of Ultrasound Scatterers Using Generative Adversarial Networks. ISBI 2019: 1674-1677 - [c62]Alvaro Gomariz, Weiye Li, Ece Ozkan, Christine Tanner, Orcun Goksel:
Siamese Networks With Location Prior for Landmark Tracking in Liver Ultrasound Sequences. ISBI 2019: 1757-1760 - [i7]Alvaro Gomariz, Weiye Li, Ece Ozkan, Christine Tanner, Orçun Göksel:
Siamese Networks with Location Prior for Landmark Tracking in Liver Ultrasound Sequences. CoRR abs/1901.08109 (2019) - [i6]Andrawes Al Bahou, Christine Tanner, Orcun Goksel:
SCATGAN for Reconstruction of Ultrasound Scatterers Using Generative Adversarial Networks. CoRR abs/1902.00469 (2019) - [i5]Firat Özdemir, Zixuan Peng, Philipp Fürnstahl, Christine Tanner, Orcun Goksel:
Active Learning for Segmentation Based on Bayesian Sample Queries. CoRR abs/1912.10493 (2019) - 2018
- [j11]Matija Ciganovic, Firat Özdemir, Fabien Péan, Philipp Fürnstahl, Christine Tanner, Orcun Goksel:
Registration of 3D freehand ultrasound to a bone model for orthopedic procedures of the forearm. Int. J. Comput. Assist. Radiol. Surg. 13(6): 827-836 (2018) - [j10]Neerav Karani, Christine Tanner, Sebastian Kozerke, Ender Konukoglu:
Reducing Navigators in Free-Breathing Abdominal MRI via Temporal Interpolation Using Convolutional Neural Networks. IEEE Trans. Medical Imaging 37(10): 2333-2343 (2018) - [c61]Firat Özdemir, Zixuan Peng, Christine Tanner, Philipp Fürnstahl, Orçun Göksel:
Active Learning for Segmentation by Optimizing Content Information for Maximal Entropy. DLMIA/ML-CDS@MICCAI 2018: 183-191 - [c60]Christine Tanner, Rastislav Starkov, Michael Bajka, Orcun Goksel:
Framework for Fusion of Data- and Model-Based Approaches for Ultrasound Simulation. MICCAI (4) 2018: 332-339 - [c59]Gustav Bredell, Christine Tanner, Ender Konukoglu:
Iterative Interaction Training for Segmentation Editing Networks. MLMI@MICCAI 2018: 363-370 - [i4]Lin Zhang, Neerav Karani, Christine Tanner, Ender Konukoglu:
Temporal Interpolation via Motion Field Prediction. CoRR abs/1804.04440 (2018) - [i3]Firat Özdemir, Zixuan Peng, Christine Tanner, Philipp Fürnstahl, Orcun Goksel:
Active Learning for Segmentation by Optimizing Content Information for Maximal Entropy. CoRR abs/1807.06962 (2018) - [i2]Christine Tanner, Firat Özdemir, Romy Profanter, Valery Vishnevsky, Ender Konukoglu, Orçun Göksel:
Generative Adversarial Networks for MR-CT Deformable Image Registration. CoRR abs/1807.07349 (2018) - [i1]Gustav Bredell, Christine Tanner, Ender Konukoglu:
Iterative Interaction Training for Segmentation Editing Networks. CoRR abs/1807.08555 (2018) - 2017
- [j9]Ece Ozkan, Christine Tanner, Matej Kastelic, Oliver Mattausch, Maxim Makhinya, Orcun Goksel:
Robust motion tracking in liver from 2D ultrasound images using supporters. Int. J. Comput. Assist. Radiol. Surg. 12(6): 941-950 (2017) - [j8]Christine Tanner, Barbara Flach, Céline Eggenberger, Oliver Mattausch, Michael Bajka, Orcun Goksel:
Consistent reconstruction of 4D fetal heart ultrasound images to cope with fetal motion. Int. J. Comput. Assist. Radiol. Surg. 12(8): 1307-1317 (2017) - [j7]Valeriy Vishnevskiy, Tobias Gass, Gábor Székely, Christine Tanner, Orçun Göksel:
Isotropic Total Variation Regularization of Displacements in Parametric Image Registration. IEEE Trans. Medical Imaging 36(2): 385-395 (2017) - [c58]Neerav Karani, Christine Tanner, Sebastian Kozerke, Ender Konukoglu:
Temporal Interpolation of Abdominal MRIs Acquired During Free-Breathing. MICCAI (2) 2017: 359-367 - 2016
- [j6]Christine Tanner, Y. Zur, Karen French, Golnoosh Samei, Jan Strehlow, G. Sat, Helen McLeod, Graeme Houston, Sebastian Kozerke, Gábor Székely, Andreas Melzer, Tobias Preußer:
In vivo validation of spatio-temporal liver motion prediction from motion tracked on MR thermometry images. Int. J. Comput. Assist. Radiol. Surg. 11(6): 1143-1152 (2016) - [c57]Christine Tanner, Minglei Yang, Golnoosh Samei, Gábor Székely:
Influence of inter-subject correspondences on liver motion predictions from population models. ISBI 2016: 286-289 - [c56]Orcun Goksel, Valery Vishnevsky, Alvaro Gomariz Carrillo, Christine Tanner:
Imaging of sliding visceral interfaces during breathing. ISBI 2016: 298-301 - [c55]Xiaoran Chen, Christine Tanner, Orçun Göksel, Gábor Székely, Valeria De Luca:
Temporal Prediction of Respiratory Motion Using a Trained Ensemble of Forecasting Methods. MIAR 2016: 383-391 - [c54]Christine Tanner, Barbara Flach, Céline Eggenberger, Oliver Mattausch, Michael Bajka, Orcun Goksel:
4D Reconstruction of Fetal Heart Ultrasound Images in Presence of Fetal Motion. MICCAI (1) 2016: 593-601 - 2015
- [c53]Valeriy Vishnevskiy, Tobias Gass, Gábor Székely, Christine Tanner, Orcun Goksel:
Unsupervised detection of local errors in image registration. ISBI 2015: 841-844 - [c52]Christine Tanner, Golnoosh Samei, Gábor Székely:
Robust exemplar model of respiratory liver motion and individualization using an additional breath-hold image. ISBI 2015: 1576-1579 - [c51]Golnoosh Samei, Gábor Székely, Christine Tanner:
Prediction of Rib Motion During Free-Breathing from Liver Observations Using 4D MRI. CLIP@MICCAI 2015: 45-53 - [c50]Valeriy Vishnevskiy, Christian T. Stoeck, Gábor Székely, Christine Tanner, Sebastian Kozerke:
Simultaneous Denoising and Registration for Accurate Cardiac Diffusion Tensor Reconstruction from MRI. MICCAI (1) 2015: 215-222 - [c49]Valeria De Luca, Gábor Székely, Christine Tanner:
Gated-tracking: Estimation of Respiratory Motion with Confidence. MICCAI (3) 2015: 451-458 - [c48]Taha Sabri Koltukluoglu, Christian Binter, Christine Tanner, Sven Hirsch, Sebastian Kozerke, Gábor Székely, Aymen Laadhari:
A Partial Domain Approach to Enable Aortic Flow Simulation Without Turbulent Modeling. MICCAI (2) 2015: 544-551 - 2014
- [j5]Frank Preiswerk, Valeria De Luca, Patrik Arnold, Zarko Celicanin, Lorena Petrusca, Christine Tanner, Oliver Bieri, Rares Salomir, Philippe C. Cattin:
Model-guided respiratory organ motion prediction of the liver from 2D ultrasound. Medical Image Anal. 18(5): 740-751 (2014) - [c47]Christine Tanner, Koen A. J. Eppenhof, Jaap Gelderblom, Gábor Székely:
Decision fusion for temporal prediction of respiratory liver motion. ISBI 2014: 698-701 - [c46]Golnoosh Samei, Christine Tanner, Gábor Székely:
RIB detection in MR images using shape priors and appearance models. ISBI 2014: 798-801 - [c45]Christine Tanner, Golnoosh Samei, Gábor Székely:
Improved Reconstruction of 4D-MR Images by Motion Predictions. MICCAI (1) 2014: 146-153 - [c44]Golnoosh Samei, Gábor Székely, Christine Tanner:
Detection and Registration of Ribs in MRI Using Geometric and Appearance Models. MICCAI (1) 2014: 706-713 - 2013
- [j4]Christine Tanner, Guido van Schie, Jan M. Lesniak, Nico Karssemeijer, Gábor Székely:
Improved location features for linkage of regions across ipsilateral mammograms. Medical Image Anal. 17(8): 1265-1272 (2013) - [c43]Clarissa C. Garvey, Nathan D. Cahill, Andrew Melbourne, Christine Tanner, Sébastien Ourselin, David J. Hawkes:
Nonrigid image registration with two-sided space-fractional partial differential equations. ICIP 2013: 747-751 - [c42]Christine Tanner, Golnoosh Samei, Gábor Székely:
Investigating anisotropic diffusion for the registration of abdominal MR images. ISBI 2013: 484-487 - [c41]Golnoosh Samei, Grzegorz Chlebus, Gábor Székely, Christine Tanner:
Adaptive Confidence Regions of Motion Predictions from Population Exemplar Models. Abdominal Imaging 2013: 231-240 - [c40]Valeria De Luca, Michael Tschannen, Gábor Székely, Christine Tanner:
A Learning-Based Approach for Fast and Robust Vessel Tracking in Long Ultrasound Sequences. MICCAI (1) 2013: 518-525 - [c39]Dirk Boye, Golnoosh Samei, Johannes Schmidt, Gábor Székely, Christine Tanner:
Population based modeling of respiratory lung motion and prediction from partial information. Medical Imaging: Image Processing 2013: 86690U - 2012
- [j3]Thomy Mertzanidou, John H. Hipwell, Manuel Jorge Cardoso, Xiying Zhang, Christine Tanner, Sébastien Ourselin, Ulrich Bick, Henkjan J. Huisman, Nico Karssemeijer, David J. Hawkes:
MRI to X-ray mammography registration using a volume-preserving affine transformation. Medical Image Anal. 16(5): 966-975 (2012) - [c38]Valeria De Luca, Christine Tanner, Gábor Székely:
Speeding-up image registration for repetitive motion scenarios. ISBI 2012: 1355-1358 - [c37]Jan M. Lesniak, Guido van Schie, Christine Tanner, Bram Platel, Henkjan J. Huisman, Nico Karssemeijer, Gábor Székely:
Multimodal Classification of Breast Masses in Mammography and MRI Using Unimodal Feature Selection and Decision Fusion. Digital Mammography / IWDM 2012: 88-95 - [c36]Guang Yang, John H. Hipwell, Christine Tanner, David J. Hawkes, Simon R. Arridge:
Joint Registration and Limited-Angle Reconstruction of Digital Breast Tomosynthesis. Digital Mammography / IWDM 2012: 713-720 - [c35]Golnoosh Samei, Christine Tanner, Gábor Székely:
Predicting Liver Motion Using Exemplar Models. Abdominal Imaging 2012: 147-157 - [c34]Andrew Melbourne, Nathan D. Cahill, Christine Tanner, Marc Modat, David J. Hawkes, Sébastien Ourselin:
Using fractional gradient information in non-rigid image registration: application to breast MRI. Medical Imaging: Image Processing 2012: 83141Z - 2011
- [c33]Andrew Melbourne, Nathan D. Cahill, Christine Tanner, David J. Hawkes:
Image registration using an extendable quadratic regulariser. ISBI 2011: 557-560 - [c32]Christine Tanner, Nico Karssemeijer, Gábor Székely:
Deformation models for registering MR and 3D ultrasound breast images. ISBI 2011: 582-585 - [c31]Y. Jafar, John H. Hipwell, Christine Tanner, Andrew Melbourne, David J. Hawkes:
Discretisation of 3D deformation fields: Implications for establishing correspondence between 2D X-ray mammographic projections. ISBI 2011: 1998-2001 - [c30]Guido van Schie, Christine Tanner, Nico Karssemeijer:
Estimating corresponding locations in ipsilateral breast tomosynthesis views. Medical Imaging: Computer-Aided Diagnosis 2011: 796306 - [c29]Valeria De Luca, H. Grabner, Lorena Petrusca, Rares Salomir, Gábor Székely, Christine Tanner:
Keep Breathing! Common Motion Helps Multi-modal Mapping. MICCAI (1) 2011: 597-604 - 2010
- [c28]Thomy Mertzanidou, John H. Hipwell, Manuel Jorge Cardoso, Christine Tanner, Sébastien Ourselin, David J. Hawkes:
X-ray Mammography - MRI Registration Using a Volume-Preserving Affine Transformation and an EM-MRF for Breast Tissue Classification. Digital Mammography / IWDM 2010: 23-30 - [c27]Christine Tanner, John H. Hipwell, David J. Hawkes, Gábor Székely:
Breast Shapes on Real and Simulated Mammograms. Digital Mammography / IWDM 2010: 540-547 - [c26]Lianghao Han, John H. Hipwell, Zeike A. Taylor, Christine Tanner, Sébastien Ourselin, David J. Hawkes:
Fast Deformation Simulation of Breasts Using GPU-Based Dynamic Explicit Finite Element Method. Digital Mammography / IWDM 2010: 728-735 - [c25]Guang Yang, John H. Hipwell, Matthew J. Clarkson, Christine Tanner, Thomy Mertzanidou, Spencer Gunn, Sébastien Ourselin, David J. Hawkes, Simon R. Arridge:
Combined Reconstruction and Registration of Digital Breast Tomosynthesis. Digital Mammography / IWDM 2010: 760-768 - [c24]Y. Jafar, John H. Hipwell, Christine Tanner, David J. Hawkes:
Detection of stable mammographic features under compression using simulated mammograms. Medical Imaging: Image Processing 2010: 76232W - [c23]Thomy Mertzanidou, John H. Hipwell, Christine Tanner, David J. Hawkes:
An intensity-based approach to x-ray mammography: MRI registration. Medical Imaging: Image Processing 2010: 76232Z - [c22]Christine Tanner, Timothy J. Carter, David J. Hawkes, Gábor Székely:
Cylindrical affine transformation model for image registration. Medical Imaging: Image Processing 2010: 76232P
2000 – 2009
- 2009
- [c21]Nico Karssemeijer, Henkjan J. Huisman, David J. Hawkes, John H. Hipwell, Tobias Böhler, Jan M. Lesniak, Christine Tanner, Gábor Székely, Wiro J. Niessen, Horst K. Hahn:
Integrating Biological Knowledge, Novel Imaging Modalities, and Modeling in Breast Cancer Diagnosis. ISBI 2009: 386-389 - [c20]Christine Tanner, Mark White, Salvatore Guarino, Margaret A. Hall-Craggs, Michael Douek, David J. Hawkes:
Anisotropic Behaviour of Breast Tissue for Large Compressions. ISBI 2009: 1223-1226 - [c19]Timothy J. Carter, Christine Tanner, David J. Hawkes:
Determining material properties of the breast for image-guided surgery. Medical Imaging: Image-Guided Procedures 2009: 726124 - [c18]Christine Tanner, John H. Hipwell, David J. Hawkes:
Using statistical deformation models for the registration of multimodal breast images. Medical Imaging: Image Processing 2009: 72590P - 2008
- [c17]Christine Tanner, John H. Hipwell, David J. Hawkes:
Statistical Deformation Models of Breast Compressions from Biomechanical Simulations. Digital Mammography / IWDM 2008: 426-432 - [c16]Timothy J. Carter, Christine Tanner, Nicolas Beechey-Newman, Dean C. Barratt, David J. Hawkes:
MR Navigated Breast Surgery: Method and Initial Clinical Experience. MICCAI (2) 2008: 356-363 - 2007
- [j2]John H. Hipwell, Christine Tanner, William R. Crum, Julia A. Schnabel, David J. Hawkes:
A New Validation Method for X-ray Mammogram Registration Algorithms Using a Projection Model of Breast X-ray Compression. IEEE Trans. Medical Imaging 26(9): 1190-1200 (2007) - [c15]David J. Hawkes, Graeme P. Penney, David Atkinson, Dean C. Barratt, Jane M. Blackall, Timothy J. Carter, William R. Crum, Jamie McClelland, Christine Tanner, Ségolène M. Tarte, Mark White:
Motion and Biomechanical Models for Image-Guided Interventions. ISBI 2007: 992-995 - 2006
- [c14]John H. Hipwell, Christine Tanner, William R. Crum, David J. Hawkes:
New Validation Method for Establishing Correspondence Between Pairs of X-Ray Mammograms. CVPR Workshops 2006: 70 - [c13]Christine Tanner, David J. Hawkes, Michael Khazen, Preminda Kessar, Martin O. Leach:
Does registration improve the performance of a computer aided diagnosis system for dynamic contrast-enhanced MR mammography? ISBI 2006: 466-469 - [c12]John H. Hipwell, Christine Tanner, William R. Crum, David J. Hawkes:
X-Ray Mammogram Registration: A Novel Validation Method. Digital Mammography / IWDM 2006: 197-204 - [c11]Timothy J. Carter, Christine Tanner, William R. Crum, Nicolas Beechey-Newman, David J. Hawkes:
A Framework for Image-Guided Breast Surgery. MIAR 2006: 203-210 - 2004
- [c10]Christine Tanner, Michael Khazen, Preminda Kessar, Martin O. Leach, David J. Hawkes:
Classification Improvement by Segmentation Refinement: Application to Contrast-Enhanced MR-Mammography. MICCAI (1) 2004: 184-191 - [c9]Yalin Zheng, Christine Tanner, Derek L. G. Hill, David J. Hawkes, Mark J. White, Michael Khazen, Martin O. Leach:
Alignment of dynamic contrast-enhanced MR volumes of the breast for a multicenter trial: an exemplar grid application. Medical Imaging: Image Processing 2004 - 2003
- [j1]Julia A. Schnabel, Christine Tanner, Andy D. Castellano-Smith, Andreas Degenhard, Martin O. Leach, D. Rodney Hose, Derek L. G. Hill, David J. Hawkes:
Validation of Non-Rigid Image Registration sing Finite Element Methods: Application to Breast MR Images. IEEE Trans. Medical Imaging 22(2): 238-247 (2003) - [c8]David J. Hawkes, Philip J. Edwards, Dean C. Barratt, Jane M. Blackall, Graeme P. Penney, Christine Tanner:
Measuring and Modeling Soft Tissue Deformation for Image Guided Interventions. IS4TH 2003: 1-14 - 2002
- [c7]Julia A. Schnabel, Christine Tanner, Andy D. Castellano-Smith, Andreas Degenhard, Carmel Hayes, Martin O. Leach, D. Rodney Hose, Derek L. G. Hill, David J. Hawkes:
Validation of Nonrigid Registration of Contrast-Enhanced MR Mammography Using Finite Element Methods. Bildverarbeitung für die Medizin 2002: 143-146 - [c6]Christine Tanner, Julia A. Schnabel, Andreas Degenhard, Andy D. Castellano-Smith, Carmel Hayes, Martin O. Leach, D. Rodney Hose, Derek L. G. Hill, David J. Hawkes:
Validation of Volume-Preserving Non-rigid Registration: Application to Contrast-Enhanced MR-Mammography. MICCAI (1) 2002: 307-314 - [c5]Julia Anne Schnabel, Christine Tanner, Andrew D. Castellano-Smith, Andreas Degenhard, Carmel Hayes, Martin O. Leach, D. Rodney Hose, Derek L. G. Hill, David John Hawkes:
Finite-element based validation of nonrigid registration using single- and multilevel free-form deformations: application to contrast-enhanced MR mammography. Medical Imaging: Image Processing 2002 - [c4]Christine Tanner, Andreas Degenhard, Julia Anne Schnabel, Andrew D. Castellano-Smith, Carmel Hayes, Luke I. Sonoda, Martin O. Leach, D. Rodney Hose, Derek L. G. Hill, David John Hawkes:
Comparison of biomechanical breast models: a case study. Medical Imaging: Image Processing 2002 - 2001
- [c3]Julia A. Schnabel, Christine Tanner, Andy D. Castellano-Smith, Martin O. Leach, Carmel Hayes, Andreas Degenhard, D. Rodney Hose, Derek L. G. Hill, David J. Hawkes:
Validation of Non-rigid Registration Using Finite Element Methods. IPMI 2001: 344-357 - [c2]Andreas Degenhard, Christine Tanner, Carmel Hayes, David J. Hawkes, Martin O. Leach:
Half Fourier Acquisition Applied to Time Series Analysis of Contrast Agent Uptake. MICCAI 2001: 872-880 - 2000
- [c1]Christine Tanner, Julia A. Schnabel, Daniel Chung, Matthew J. Clarkson, Daniel Rueckert, Derek L. G. Hill, David J. Hawkes:
Volume and Shape Preservation of Enhancing Lesions when Applying Non-rigid Registration to a Time Series of Contrast Enhancing MR Breast Images. MICCAI 2000: 327-337
Coauthor Index
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.
Unpaywalled article links
Add open access links from to the list of external document links (if available).
Privacy notice: By enabling the option above, your browser will contact the API of unpaywall.org to load hyperlinks to open access articles. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Unpaywall privacy policy.
Archived links via Wayback Machine
For web page which are no longer available, try to retrieve content from the of the Internet Archive (if available).
Privacy notice: By enabling the option above, your browser will contact the API of archive.org to check for archived content of web pages that are no longer available. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Internet Archive privacy policy.
Reference lists
Add a list of references from , , and to record detail pages.
load references from crossref.org and opencitations.net
Privacy notice: By enabling the option above, your browser will contact the APIs of crossref.org, opencitations.net, and semanticscholar.org to load article reference information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Crossref privacy policy and the OpenCitations privacy policy, as well as the AI2 Privacy Policy covering Semantic Scholar.
Citation data
Add a list of citing articles from and to record detail pages.
load citations from opencitations.net
Privacy notice: By enabling the option above, your browser will contact the API of opencitations.net and semanticscholar.org to load citation information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the OpenCitations privacy policy as well as the AI2 Privacy Policy covering Semantic Scholar.
OpenAlex data
Load additional information about publications from .
Privacy notice: By enabling the option above, your browser will contact the API of openalex.org to load additional information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the information given by OpenAlex.
last updated on 2024-10-07 21:21 CEST by the dblp team
all metadata released as open data under CC0 1.0 license
see also: Terms of Use | Privacy Policy | Imprint