TY - JOUR AU - V. Budimirović, B. Šešelja TI - Operators H, S and P in the classes of p-semigroups and p-semirings JO - Novi Sad Journal of Mathematics PY - 2002 SP - 127 EP - 132 VL - 32 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NSJOM_2002_32_1a_10/ ID - NSJOM_2002_32_1a_10 ER -