TY - JOUR AU - Abdelwanis, Ahmed Y. AU - Boua, Abdelkarim TI - On generalized derivations of partially ordered sets JO - Communications in Mathematics PY - 2019 SP - 69 EP - 78 VL - 27 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/COMIM_2019__27_1_a5/ LA - en ID - COMIM_2019__27_1_a5 ER -