@article{AIF_1979__29_1_49_0,
     author = {Gillard, Roland},
     title = {Unit\'es cyclotomiques, unit\'es semi-locales et ${\mathbb {Z}}_\ell $-extensions},
     journal = {Annales de l'Institut Fourier},
     pages = {49--79},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {29},
     number = {1},
     year = {1979},
     doi = {10.5802/aif.727},
     mrnumber = {81e:12005a},
     zbl = {0387.12002},
     language = {fr},
     url = {http://www.numdam.org/articles/10.5802/aif.727/}
}