by Kwok Chi Chim, István Pink and Volker Ziegler
Reference:
Kwok Chi Chim, István Pink and Volker Ziegler, On a variant of Pillai's problem II, Journal of Number Theory, 183, (2018).
Bibtex Entry:
@Article{ChimEtAl2018,
arxiv = {1610.06304},
author = {Kwok Chi Chim and Pink, Istv{\'a}n and Ziegler, Volker},
journal = {Journal of Number Theory},
title = {On a variant of {P}illai's problem {II}},
year = {2018},
volume = {183},
doi = {10.1016/j.jnt.2017.07.016},
groups = {Project09 (Tichy), Student, External},
xxmrnumber = {3715237},
pags = {269-290},
}