@article{DM_1991_3_1_a4,
     author = {V. I. Afanasyev},
     title = {On the probability of the first passage into a~fixed state for a~random walk on a~half-line},
     journal = {Diskretnaya Matematika},
     pages = {61--67},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1991_3_1_a4/}
}