TY - JOUR AU - A. V. Borovskikh TI - Equivalence groupes of eikonal equation and classes of equivalent equations JO - Sibirskij žurnal čistoj i prikladnoj matematiki PY - 2006 SP - 3 EP - 42 VL - 6 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VNGU_2006_6_4_a0/ LA - ru ID - VNGU_2006_6_4_a0 ER -