BibTeX: 
@article{First_Welfare_TheoremAFP,
author = {Julian Parsert and Cezary Kaliszyk},
title = {Microeconomics and the First Welfare Theorem},
journal = {Archive of Formal Proofs},
month = sep,
year = 2017,
note = {\url{https://isaafp.org/entries/First_Welfare_Theorem.html},
Formal proof development},
ISSN = {2150914x},
}
