共 50 条
- [47] A conjecture of Erdos concerning inequalities for the Euler totient function PUBLICATIONES MATHEMATICAE-DEBRECEN, 2001, 59 (1-2): : 9 - 16
- [50] On a group-theoretical generalization of the Euler's totient function INDIAN JOURNAL OF PURE & APPLIED MATHEMATICS, 2024, 55 (04): : 1231 - 1233