@article{CTGDC_2000__41_1_75_0,
     author = {Alvarez, J. N. Alonso and Vilaboa, J. M. Fern\'andez},
     title = {On {Galois} $H$-objects and invertible $H^\ast $-modules},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     pages = {75--79},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {41},
     number = {1},
     year = {2000},
     mrnumber = {1748752},
     zbl = {0962.18006},
     language = {en},
     url = {http://www.numdam.org/item/CTGDC_2000__41_1_75_0/}
}