TY - JOUR AU - R. V. Mikhailov TI - Transfinite Lower Central Series of Groups: Parafree Properties and Topological Applications JO - Informatics and Automation PY - 2002 SP - 251 EP - 267 VL - 239 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2002_239_a15/ LA - ru ID - TRSPY_2002_239_a15 ER -