@article{JTNB_2004__16_1_95_0,
     author = {Chen, Imin and De Smit, Bart and Grabitz, Martin},
     title = {Relations between jacobians of modular curves of level $p^2$},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {95--106},
     publisher = {Universit\'e Bordeaux 1},
     volume = {16},
     number = {1},
     year = {2004},
     doi = {10.5802/jtnb.435},
     zbl = {02184633},
     mrnumber = {2145574},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/jtnb.435/}
}