TY - JOUR AU - È. G. Shifrin TI - A condition for the breakdown of the region of continuous supersonic JO - Doklady Akademii Nauk PY - 1967 SP - 797 EP - 800 VL - 176 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_176_4_a15/ LA - ru ID - DAN_1967_176_4_a15 ER -