TY - JOUR AU - Al-Thani, Huda Mohammed J. TI - Characterizations of projective and -projective semimodules. JO - International Journal of Mathematics and Mathematical Sciences PY - 2002 SP - 439 VL - 32 IS - 7 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/articles/10.1155/S0161171202109227/ DO - 10.1155/S0161171202109227 LA - en ID - 10_1155_S0161171202109227 ER -