TY - JOUR AU - J. M. Firsov TI - Semimodules over ordered rings. JO - Semigroup forum PY - 1977 SP - 283 EP - 294 VL - 15 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1977__15_134260/ ID - SF_1977__15_134260 ER -