Lower bounds on the vertex-connectivity of oriented graphs and bipartite oriented graphs
Util. Math. 73 (2007), 45--54.
BibTex references
@Article\{Vol07d,
author = "Volkmann, Lutz",
title = "Lower bounds on the vertex-connectivity of oriented graphs and bipartite oriented graphs",
journal = "Util. Math.",
volume = "73",
pages = "45--54",
year = "2007",
}