TY  - JOUR
AU  - A. Stronska
TI  - Nilpotent subsemigroups of a~semigroup of order-decreasing transformations of a~rooted tree
JO  - Algebra and discrete mathematics
PY  - 2006
SP  - 126
EP  - 140
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ADM_2006_4_a8/
LA  - en
ID  - ADM_2006_4_a8
ER  -