BibTeX: 
@article{IncompletenessAFP,
author = {Lawrence C. Paulson},
title = {Gödel's Incompleteness Theorems},
journal = {Archive of Formal Proofs},
month = nov,
year = 2013,
note = {\url{http://afp.sf.net/entries/Incompleteness.shtml},
Formal proof development},
ISSN = {2150914x},
}
