@article{SM_1972_18_3_a7,
     author = {V. K. Zakharov and O. V. Sarmanov},
     title = {Combinatorial methods for investigating the distribution of the trajectory amplitude of a~random walk},
     journal = {Sbornik. Mathematics},
     pages = {529--540},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {1972},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1972_18_3_a7/}
}