TY - JOUR AU - M. I. Sumin TI - Dual regularization and Pontryagin's maximum principle in a problem of optimal boundary control for a parabolic equation with nondifferentiable functionals JO - Trudy Instituta matematiki i mehaniki PY - 2011 SP - 229 EP - 244 VL - 17 IS - 1 UR - http://geodesic.mathdoc.fr/item/TIMM_2011_17_1_a18/ LA - ru ID - TIMM_2011_17_1_a18 ER -