@article{MMO_1973_29_a16,
     author = {E. G. \v{S}ul'geǐfer},
     title = {Bivarieties and the {Galois} correspondence in a~category of functors},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {261--276},
     publisher = {mathdoc},
     volume = {29},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1973_29_a16/}
}