TY - JOUR AU - M. V. Zhitlukhin AU - A. N. Shiryaev TI - On the existence of solutions of unbounded optimal stopping problems JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2014 SP - 310 EP - 319 VL - 287 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_2014_287_a17/ LA - ru ID - TM_2014_287_a17 ER -