@article{AIF_1986__36_3_29_0,
     author = {Charkani El Hassani, Mohamed and Gillard, Roland},
     title = {Unit\'es elliptiques et groupes de classes},
     journal = {Annales de l'Institut Fourier},
     pages = {29--41},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {36},
     number = {3},
     year = {1986},
     doi = {10.5802/aif.1057},
     mrnumber = {88f:11056},
     zbl = {0597.12005},
     language = {fr},
     url = {http://www.numdam.org/articles/10.5802/aif.1057/}
}