TY - JOUR AU - V. N. Pyvovarchyk TI - Polynomial operator pencils connected with problems of mechanics JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1991 SP - 62 EP - 64 VL - 25 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1991_25_4_a5/ LA - ru ID - FAA_1991_25_4_a5 ER -