TY  - JOUR
AU  - K. A. Zaretskii
TI  - Regular elements of the semigroup of binary relations
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1962
VL  - 17
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1962_17_3_a5/
LA  - ru
ID  - RM_1962_17_3_a5
ER  -