@article{DBLP:journals/sttt/Wolper97,
author = {Pierre Wolper},
title = {The Meaning of "Formal": From Weak to Strong Formal Methods},
journal = {STTT},
volume = {1},
number = {1-2},
year = {1997},
pages = {6-8},
ee = {http://dx.doi.org/10.1007/s100090050002},
bibsource = {DBLP, http://dblp.uni-trier.de}
}