@article{05024397,
title = {Nodal domain theorems and bipartite subgraphs.},
journal = {ELA. The Electronic Journal of Linear Algebra [electronic only]},
volume = {14},
year = {2005},
pages = {344-351},
zbl = {1090.05046},
language = {en},
url = {http://dml.mathdoc.fr/item/05024397}
}
Bıyıkoğlu, Türker; Leydold, Josef; Stadler, Peter F. Nodal domain theorems and bipartite subgraphs.. ELA. The Electronic Journal of Linear Algebra [electronic only], Tome 14 (2005) pp. 344-351. http://gdmltest.u-ga.fr/item/05024397/