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@article{DAN_1964_156_6_a12, author = {B. M. Shain}, title = {Involutary semigroups of complete binary relations}, journal = {Doklady Akademii Nauk}, pages = {1300--1303}, publisher = {mathdoc}, volume = {156}, number = {6}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_156_6_a12/} }
B. M. Shain. Involutary semigroups of complete binary relations. Doklady Akademii Nauk, Tome 156 (1964) no. 6, pp. 1300-1303. http://geodesic.mathdoc.fr/item/DAN_1964_156_6_a12/