@inproceedings{DBLP:conf/ac/Liskov79,
author = {Barbara Liskov},
title = {Modular Program Construction Using Abstractions},
booktitle = {Abstract Software Specifications},
year = {1979},
pages = {354-389},
ee = {http://dx.doi.org/10.1007/3-540-10007-5_43},
crossref = {DBLP:conf/ac/1979ass},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
@proceedings{DBLP:conf/ac/1979ass,
editor = {Dines Bj{\o}rner},
title = {Abstract Software Specifications, 1979 Copenhagen Winter
School, January 22 - February 2, 1979, Proceedings},
booktitle = {Abstract Software Specifications},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
volume = {86},
year = {1980},
isbn = {3-540-10007-5},
bibsource = {DBLP, http://dblp.uni-trier.de}
}