TY - JOUR AU - S. Ya. Serovaǐskiǐ TI - Optimization for nonlinear hyperbolic equations without the uniqueness theorem for a~solution of the boundary-value problem JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2009 SP - 76 EP - 83 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2009_1_a3/ LA - ru ID - IVM_2009_1_a3 ER -