TY - JOUR AU - A. V. Tsiganov TI - On deformations of the canonical Poisson bracket for the nonholonomic Chaplygin and the Borisov--Mamaev--Fedorov systems on zero-level of the area integral.~I JO - Russian journal of nonlinear dynamics PY - 2011 SP - 577 EP - 599 VL - 7 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ND_2011_7_3_a12/ LA - ru ID - ND_2011_7_3_a12 ER -