TY - JOUR AU - Dimitrova, Ilinka AU - Mladenova, Tsvetelina TI - Classification of the Maximal Subsemigroups of the Semigroup of all Partial Order-Preserving Transformations JO - Mathematics and Education in Mathematics PY - 2012 SP - 158 EP - 162 VL - 41 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MEM_2012_41_1_a13/ LA - en ID - MEM_2012_41_1_a13 ER -