@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/