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@article{DBLP:journals/dm/Purdy82,
author = {George B. Purdy},
title = {The independent sets of rank k of a matroid},
journal = {Discrete Mathematics},
volume = {38},
number = {1},
year = {1982},
pages = {87-91},
ee = {http://dx.doi.org/10.1016/0012-365X(82)90172-8},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
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