Basarab, Serban A. Categories cofibrees et H\(^2\) non Abelien. (Romanian) Zbl 0245.18011 Stud. Cercet. Mat. 24, 665-678 (1972). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 18D30 Fibered categories 20J06 Cohomology of groups 20J05 Homological methods in group theory PDF BibTeX XML Cite \textit{S. A. Basarab}, Stud. Cercet. Mat. 24, 665--678 (1972; Zbl 0245.18011)