@article{MET_1984__31_175953,
     author = {U. Dieter and I.H. Ahrens},
     title = {The {Prison} {Rule} in {Roulette.}},
     journal = {Metrika},
     pages = {227--231},
     publisher = {mathdoc},
     volume = {31},
     year = {1984},
     url = {http://geodesic.mathdoc.fr/item/MET_1984__31_175953/}
}