TY  - JOUR
AU  - Constantinos N. Yatras
TI  - Characteristic of M-polysymmetrical Hyperrings and some properties of M-Polysymmetrical Hyperrings with Unity
JO  - Ευκλείδης Γ
PY  - 1993
SP  - 115
EP  - 125
VL  - 38
UR  - http://geodesic.mathdoc.fr/item/EUG_1993_38_a20/
LA  - gr
ID  - EUG_1993_38_a20
ER  -