@article{RM_1978_33_6_a21,
     author = {A. \`E. Pasenchuk},
     title = {On~a~problem of~random walk in~a~quadrant},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {253--254},
     publisher = {mathdoc},
     volume = {33},
     number = {6},
     year = {1978},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1978_33_6_a21/}
}