Heller, Alex Homological algebra in Abelian categories. (English) Zbl 0084.26704 Ann. Math. (2) 68, 484-525 (1958). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 39 Documents Keywords:rings, modules, fields PDFBibTeX XMLCite \textit{A. Heller}, Ann. Math. (2) 68, 484--525 (1958; Zbl 0084.26704) Full Text: DOI