TY - JOUR AU - A. G. Chentsov TI - Well-posed extensions of unstable control problems with integral constraints JO - Izvestiya. Mathematics PY - 1999 SP - 599 EP - 630 VL - 63 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1999_63_3_a7/ LA - en ID - IM2_1999_63_3_a7 ER -