Reference:
@INPROCEEDINGS{halbwachs94c,
AUTHOR={N. Halbwachs},
TITLE={About synchronous programming and abstract interpretation},
BOOKTITLE={International Symposium on Static Analysis, SAS'94},
EDITOR = {B. {LeCharlier}},
PUBLISHER = {LNCS 864, Springer Verlag},
ADDRESS = {Namur (belgium)},
MONTH = {September},
YEAR= 1994
}
Extended verion published in
journal={Science of Computer Programming,Special Issue on SAS'94},
editor={P. Cousot and B. Le Charlier},
volume= 31,
number= 1,
month= {May},
year=1998