\bibitem{CousotCousot-2012-01-21-Pre-POPL-Yak}
P.~Cousot and R.~Cousot.
\newblock Abstract Hoare Logic.
\newblock In Pre-POPL Yak International, CIMS, NYU, January 21st, 2011.
@inproceedings{CousotCousot-2012-01-21-Pre-POPL-Yak,
author = {Patrick Cousot and
Radhia Cousot},
title = {Abstract Hoare Logic},
booktitle = {Pre-POPL Yak International, CIMS, NYU},
month = jan # " 21st",
year = {2011},
}