TY - JOUR AU - I. M. Nikonov TI - Universal Karoubi characteristic classes of approximately finite algebras JO - Sbornik. Mathematics PY - 2005 SP - 231 EP - 242 VL - 196 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_2005_196_2_a3/ LA - en ID - SM_2005_196_2_a3 ER -