TY - JOUR AU - Hoo, C.S. AU - Shum, K.P. TI - Prime radical theorem on ordered semigroups. JO - Semigroup forum PY - 1980 VL - 19 SP - 87 EP - 94 KW - prime radical; order ideal; residuated negatively ordered semigroup UR - http://eudml.org/doc/134371 ER -