TY - JOUR AU - A. D. Sidorenko TI - A theorem on the impossibility of a gradient catastrophe for a certain class of multidimensional systems of quasilinear equations JO - Differencialʹnye uravneniâ PY - 1974 SP - 1328 EP - 1331 VL - 10 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1974_10_7_a21/ LA - ru ID - DE_1974_10_7_a21 ER -