TY - JOUR AU - B. A. Kats TI - Convexity and star-shapedness of the level curves of polynomials JO - Matematičeskie zametki PY - 1974 SP - 701 EP - 710 VL - 15 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1974_15_5_a5/ LA - ru ID - MZM_1974_15_5_a5 ER -