@phdthesis{oai:tsukuba.repo.nii.ac.jp:00008486, author = {Saito, Tsuyoshi and 齋藤, 毅}, month = {}, note = {Almost all decision making processes which we encounter in the real world have deadlines up to when a decision must be made. Typical of these is the so-called optinal stopping problem, for example ..., 1998}, school = {筑波大学, University of Tsukuba}, title = {Optimal stopping problems with reservation}, year = {1999} }