BibTeX: 
@article{Secondary_SylowAFP,
author = {Jakob von Raumer},
title = {Secondary Sylow Theorems},
journal = {Archive of Formal Proofs},
month = jan,
year = 2014,
note = {\url{http://isaafp.org/entries/Secondary_Sylow.shtml},
Formal proof development},
ISSN = {2150914x},
}
