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Universal central extensions in semi-abelian categories

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Bibliographic reference Casas, José Manuel ; Van der Linden, Tim. Universal central extensions in semi-abelian categories. In: Applied Categorical Structures : a journal devoted to applications of categorical methods in algebra, analysis, order, topology and computer science, Vol. 22, p. 253–268 (2014)
Permanent URL http://hdl.handle.net/2078.1/128238