Automorphism groups of the modular curves $X_0\left(N\right)$

Kenku, M. A.; Momose, Fumiyuki

Compositio Mathematica, Volume 65 (1988) p. 51-80

Rational points on the modular curves $X_{\mathrm{split}}\left(p\right)$

Momose, Fumiyuki

Compositio Mathematica, Volume 52 (1984) p. 115-137