@article{CTGDC_1985__26_1_63_0,
author = {Vale, Maria J.},
title = {Torsors and special extensions},
journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
volume = {26},
year = {1985},
pages = {63-90},
mrnumber = {794417},
zbl = {0578.18010},
language = {en},
url = {http://dml.mathdoc.fr/item/CTGDC_1985__26_1_63_0}
}
Vale, Maria J. Torsors and special extensions. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 26 (1985) pp. 63-90. http://gdmltest.u-ga.fr/item/CTGDC_1985__26_1_63_0/
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