%0 Journal Article %A M. Sh. Tsalenko %T Categories of correspondences over regular categories %J Doklady Akademii Nauk %D 1973 %P 297-299 %V 211 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_211_2_a8/ %G ru %F DAN_1973_211_2_a8