@article{1270041620,
author = {ISHIDA, Nobuhiko and ISHII, Noburo},
title = {The Equation for the Modular Curve $X\_1(N)$ Derived from the Equation for the Modular Curve $X(N)$},
journal = {Tokyo J. of Math.},
volume = {22},
number = {2},
year = {1999},
pages = { 167-175},
language = {en},
url = {http://dml.mathdoc.fr/item/1270041620}
}
ISHIDA, Nobuhiko; ISHII, Noburo. The Equation for the Modular Curve $X_1(N)$ Derived from the Equation for the Modular Curve $X(N)$. Tokyo J. of Math., Tome 22 (1999) no. 2, pp. 167-175. http://gdmltest.u-ga.fr/item/1270041620/