Regular elements of the semigroup of all binary relations.
Semigroup forum, Tome 13 (1976), pp. 95-102
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@article{SF_1976__13_134200,
author = {B.M. Schein},
title = {Regular elements of the semigroup of all binary relations.},
journal = {Semigroup forum},
pages = {95--102},
publisher = {mathdoc},
volume = {13},
year = {1976},
zbl = {0355.20058},
url = {http://geodesic.mathdoc.fr/item/SF_1976__13_134200/}
}
B.M. Schein. Regular elements of the semigroup of all binary relations.. Semigroup forum, Tome 13 (1976), pp. 95-102. http://geodesic.mathdoc.fr/item/SF_1976__13_134200/