@article{1183420544, author = {Onnen, H.}, title = {Gergonne's pile problem}, journal = {Bull. Amer. Math. Soc.}, volume = {16}, number = {3}, year = {1909}, pages = { 121-130}, language = {en}, url = {http://dml.mathdoc.fr/item/1183420544} }
Onnen, H. Gergonne's pile problem. Bull. Amer. Math. Soc., Tome 16 (1909) no. 3, pp. 121-130. http://gdmltest.u-ga.fr/item/1183420544/