Structural remarks on bipartite graphs with unique f-factors
Graphs Combin. 21 (2005), no. 4, 421--425.
BibTex references
@Article\{HV05,
author = "Hoffmann, Arne and Volkmann, Lutz",
title = "Structural remarks on bipartite graphs with unique f-factors",
journal = "Graphs Combin.",
number = "4",
volume = "21",
pages = "421--425",
year = "2005",
}