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Differential algebra in its own rite. (English) Zbl 0224.55027
Proc. adv. Study Inst. algebraic Topol. 1970, various Publ. Ser. 13, 567-577 (1970).

55U99 Applied homological algebra and category theory in algebraic topology
55U40 Topological categories, foundations of homotopy theory
18G15 Ext and Tor, generalizations, K√ľnneth formula (category-theoretic aspects)
18G35 Chain complexes (category-theoretic aspects), dg categories