TY - JOUR AU - A. M. Levin TI - Decomposability of polymorphisms generated by an action of two finite groups JO - Zapiski Nauchnykh Seminarov POMI PY - 2010 SP - 47 EP - 57 VL - 378 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2010_378_a4/ LA - ru ID - ZNSL_2010_378_a4 ER -