TY - JOUR AU - N. M. Ivochkina TI - A description of the stability cones generated by differential operators of Monge--Amp\`ere type JO - Sbornik. Mathematics PY - 1985 SP - 259 EP - 268 VL - 50 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1985_50_1_a16/ LA - en ID - SM_1985_50_1_a16 ER -