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@article{DAN_1972_205_6_a9, author = {D. A. Raikov}, title = {On a class of correspondence categories}, journal = {Doklady Akademii Nauk}, pages = {1300--1303}, publisher = {mathdoc}, volume = {205}, number = {6}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1972_205_6_a9/} }
D. A. Raikov. On a class of correspondence categories. Doklady Akademii Nauk, Tome 205 (1972) no. 6, pp. 1300-1303. http://geodesic.mathdoc.fr/item/DAN_1972_205_6_a9/