TY  - JOUR
AU  - Schein, B. M.
TI  - Involuted Restrictive Bisemigroups of Binary Relations
JO  - Mathematica slovaca
PY  - 1969
SP  - 307
EP  - 315
VL  - 19
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MASLO_1969__19_4_a10/
LA  - en
ID  - MASLO_1969__19_4_a10
ER  -