TY - JOUR AU - A. V. Pukhlikov TI - Geometry of Discontinuous Systems near a Manifold of Singularities of Third Order JO - Differencialʹnye uravneniâ PY - 2005 SP - 1635 EP - 1641 VL - 41 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2005_41_12_a6/ LA - ru ID - DE_2005_41_12_a6 ER -