@article{TVP_2010_55_3_a15,
     author = {K. Iwata},
     title = {On a semigroup of optimal stopping times},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {604},
     publisher = {mathdoc},
     volume = {55},
     number = {3},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TVP_2010_55_3_a15/}
}