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, International Journal of Number Theory, 13, 1711-1727, (2017).
Bibtex Entry:
@Article{ChimEtAl2017,
arxiv = {1604.04719},
author = {Kwok Chi Chim and Pink, Istv{\'a}n and Ziegler, Volker},
journal = {International Journal of Number Theory},
title = {On a variant of {P}illai's problem},
year = {2017},
pages = {1711-1727},
volume = {13},
doi = {10.1142/S1793042117500981},
groups = {Project09 (Tichy), Student, External},
xxmrnumber = {3667491},
}