TY  - JOUR
AU  - Kalcho Todorov
AU  - Ilinka Dimitrova
TI  - On Some Maximal Subsemigroups of the Symmetric Semigroup
JO  - Mathematica balkanica
PY  - 2005
SP  - 427
VL  - 19
IS  - 3-4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MABA_2005_19_3-4_a12/
ID  - MABA_2005_19_3-4_a12
ER  -