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@article{DAN_1969_189_6_a2, author = {M. S. Burgin}, title = {Categories of correspondence over semiabelian categories}, journal = {Doklady Akademii Nauk}, pages = {1174--1176}, publisher = {mathdoc}, volume = {189}, number = {6}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1969_189_6_a2/} }
M. S. Burgin. Categories of correspondence over semiabelian categories. Doklady Akademii Nauk, Tome 189 (1969) no. 6, pp. 1174-1176. http://geodesic.mathdoc.fr/item/DAN_1969_189_6_a2/