BibTeX: 
@article{Irrational_Series_Erdos_StrausAFP,
author = {Angeliki KoutsoukouArgyraki and Wenda Li},
title = {Irrationality Criteria for Series by Erdős and Straus},
journal = {Archive of Formal Proofs},
month = may,
year = 2020,
note = {\url{http://isaafp.org/entries/Irrational_Series_Erdos_Straus.html},
Formal proof development},
ISSN = {2150914x},
}
