TY - JOUR AU - S. F. Morozov TI - Discontinuous solutions of two-dimensional problems of the calculus of variations in nonparametric form JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1969 SP - 56 EP - 64 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1969_9_a8/ LA - ru ID - IVM_1969_9_a8 ER -