@article{DBLP:journals/dm/CramaLP92,
author = {Yves Crama and
Martin Loebl and
Svatopluk Poljak},
title = {A decomposition of strongly unimodular matrices into incidence
matrices of diagraphs},
journal = {Discrete Mathematics},
volume = {102},
number = {2},
year = {1992},
pages = {143-147},
ee = {http://dx.doi.org/10.1016/0012-365X(92)90048-K},
bibsource = {DBLP, http://dblp.uni-trier.de}
}