TY  - JOUR
AU  - Ch. G. Massouros
TI  - Constructions of Hyperfields
JO  - Mathematica balkanica
PY  - 1991
SP  - 250
VL  - 5
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MABA_1991_5_3_a7/
ID  - MABA_1991_5_3_a7
ER  -