TY - JOUR AU - S. Omidi AU - B. Davvaz TI - Bi-$\Gamma$-hyperideals and Green's relations in ordered $\gamma$-semihypergroups JO - Eurasian mathematical journal PY - 2017 SP - 63 EP - 73 VL - 8 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EMJ_2017_8_4_a7/ LA - en ID - EMJ_2017_8_4_a7 ER -