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@article{MMO_1975_33_a4, author = {D. A. Raǐkov}, title = {Categories of relations with a~quasizero object}, journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva}, pages = {223--261}, publisher = {mathdoc}, volume = {33}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MMO_1975_33_a4/} }
D. A. Raǐkov. Categories of relations with a~quasizero object. Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 33 (1975), pp. 223-261. http://geodesic.mathdoc.fr/item/MMO_1975_33_a4/