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@article{MAT_1964_8_4_a5, author = {J. G. Wendel}, title = {Spitzer's formula: a short proof}, journal = {Matematika}, pages = {151--154}, publisher = {mathdoc}, volume = {8}, number = {4}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1964_8_4_a5/} }
J. G. Wendel. Spitzer's formula: a short proof. Matematika, Tome 8 (1964) no. 4, pp. 151-154. http://geodesic.mathdoc.fr/item/MAT_1964_8_4_a5/