TY  - JOUR
AU  - Vougiouklis, T.
TI  - The set of hypergroups with operators which are constructed from a set with two elements
JO  - Acta Universitatis Carolinae. Mathematica et Physica
PY  - 1981
SP  - 7
EP  - 10
VL  - 22
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AUCMP_1981__22_1_a2/
LA  - en
ID  - AUCMP_1981__22_1_a2
ER  -