TY  - JOUR
AU  - Nobuhiko Ishida
TI  - Generators and equations for modular function fields of principal congruence subgroups
JO  - Acta Arithmetica
PY  - 1998
SP  - 197
EP  - 207
VL  - 85
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa-85-3-197-207/
DO  - 10.4064/aa-85-3-197-207
LA  - en
ID  - 10_4064_aa_85_3_197_207
ER  -