@article{PMIHES_1977__47__33_0,
     author = {Mazur, Barry},
     title = {Modular curves and the {Eisenstein} ideal},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {33--186},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {47},
     year = {1977},
     mrnumber = {488287},
     zbl = {0394.14008},
     language = {en},
     url = {http://www.numdam.org/item/PMIHES_1977__47__33_0/}
}