@article{DAN_1973_212_4_a12,
     author = {A. Naziev},
     title = {The realization of dual categories},
     journal = {Doklady Akademii Nauk},
     pages = {825--827},
     year = {1973},
     volume = {212},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_212_4_a12/}
}