@article{10_4153_CJM_2011_079_2,
     author = {Borwein, Jonathan M. and Straub, Armin and Wan, James and Zudilin, Wadim and Zagier, Don},
     title = {Densities of {Short} {Uniform} {Random} {Walks}},
     journal = {Canadian journal of mathematics},
     pages = {961--990},
     year = {2012},
     volume = {64},
     number = {5},
     doi = {10.4153/CJM-2011-079-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2011-079-2/}
}