@article{1183498786, author = {Herschfeld, Aaron}, title = {The equation $2^x - 3^y = d$}, journal = {Bull. Amer. Math. Soc.}, volume = {42}, number = {12}, year = {1936}, pages = { 231-234}, language = {en}, url = {http://dml.mathdoc.fr/item/1183498786} }
Herschfeld, Aaron. The equation $2^x - 3^y = d$. Bull. Amer. Math. Soc., Tome 42 (1936) no. 12, pp. 231-234. http://gdmltest.u-ga.fr/item/1183498786/