TY - JOUR AU - V. N. Sachkov TI - Reduction operator and transforms with a hereditary property.~II JO - Trudy po diskretnoj matematike PY - 2007 SP - 269 EP - 286 VL - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TDM_2007_10_a13/ LA - ru ID - TDM_2007_10_a13 ER -