Volume 55, Number 1, May 2007
: The circular chromatic numbers of planar digraphs.
Volume 55, Number 2, June 2007
Volume 55, Number 3, July 2007
T. H. Marshall
: Homomorphism bounds for oriented planar graphs.
: Vertex partitions and maximum degenerate subgraphs.
Volume 55, Number 4, August 2007
: New bounds on the edge number of a k-map graph.
: Volume entropy, weighted girths and stable balls on graphs.
: Relationships between total domination, order, size, and maximum degree of graphs.