TY - JOUR AU - A. M. Vershik TI - Nonfree actions of countable groups and their characters JO - Zapiski Nauchnykh Seminarov POMI PY - 2010 SP - 5 EP - 16 VL - 378 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2010_378_a0/ LA - ru ID - ZNSL_2010_378_a0 ER -