BibTeX: 
@article{Zeta_3_IrrationalAFP,
author = {Manuel Eberl},
title = {The Irrationality of ζ(3)},
journal = {Archive of Formal Proofs},
month = dec,
year = 2019,
note = {\url{http://isaafp.org/entries/Zeta_3_Irrational.html},
Formal proof development},
ISSN = {2150914x},
}
