TY - JOUR AU - L. V. Levantovskii TI - Singularities of the boundary of the stability domain JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1982 SP - 44 EP - 48 VL - 16 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1982_16_1_a5/ LA - ru ID - FAA_1982_16_1_a5 ER -