@article{02221809,
title = {A simple proof for the existence of exponentially balanced Gray codes.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {12},
year = {2005},
zbl = {1079.94010},
language = {en},
url = {http://dml.mathdoc.fr/item/02221809}
}
Suparta, I Nengah. A simple proof for the existence of exponentially balanced Gray codes.. The Electronic Journal of Combinatorics [electronic only], Tome 12 (2005) . http://gdmltest.u-ga.fr/item/02221809/