TY - JOUR AU - S. V. Bolotin AU - V. V. Kozlov TI - Calculus of variations in the large, existence of trajectories in a~domain with boundary, and Whitney's inverted pendulum problem JO - Izvestiya. Mathematics PY - 2015 SP - 894 EP - 901 VL - 79 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_2015_79_5_a1/ LA - en ID - IM2_2015_79_5_a1 ER -