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"Positive Rational Numbers of the Form φ ( m 2 ) / φ ( n 2 )."
Hongjian Li, Pingzhi Yuan, Hairong Bai (2021)
- Hongjian Li, Pingzhi Yuan, Hairong Bai:
Positive Rational Numbers of the Form φ ( m 2 ) / φ ( n 2 ). Am. Math. Mon. 128(2): 174-176 (2021)
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