%0 Journal Article %A M. V. Zhitlukhin %A A. N. Shiryaev %T On the existence of solutions of unbounded optimal stopping problems %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2014 %P 310-319 %V 287 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2014_287_a17/ %G ru %F TM_2014_287_a17