@inproceedings{DBLP:conf/isaac/FujitoO01,
author = {Toshihiro Fujito and
Tsuyoshi Okumura},
title = {A Modified Greedy Algorithm for the Set Cover Problem with
Weights 1 and 2},
booktitle = {ISAAC},
year = {2001},
pages = {670-681},
ee = {http://dx.doi.org/10.1007/3-540-45678-3_57},
crossref = {DBLP:conf/isaac/2001},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
@proceedings{DBLP:conf/isaac/2001,
editor = {Peter Eades and
Tadao Takaoka},
title = {Algorithms and Computation, 12th International Symposium,
ISAAC 2001, Christchurch, New Zealand, December 19-21, 2001,
Proceedings},
booktitle = {ISAAC},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
volume = {2223},
year = {2001},
isbn = {3-540-42985-9},
bibsource = {DBLP, http://dblp.uni-trier.de}
}