@article{00847586,
title = {When is a 0-1 knapsack a matroid?},
journal = {Portugaliae Mathematica. Nova S\'erie},
volume = {52},
year = {1995},
pages = {475-480},
zbl = {0839.90077},
language = {en},
url = {http://dml.mathdoc.fr/item/00847586}
}
Cerdeira, J.Orestes; Barcia, Paulo. When is a 0-1 knapsack a matroid?. Portugaliae Mathematica. Nova Série, Tome 52 (1995) pp. 475-480. http://gdmltest.u-ga.fr/item/00847586/