TY - JOUR AU - G. E. Ivanov AU - M. S. Lopushanski TI - A separation theorem for nonconvex sets and its applications JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 2016 SP - 23 EP - 66 VL - 21 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_2016_21_4_a2/ LA - ru ID - FPM_2016_21_4_a2 ER -