1
by Harris, John M., Hirst, Jeffry L., Mossinghoff, Michael J.
Published 2000
Springer New York
Table of Contents: ...Graph Theory: Introductory Concepts -- Trees -- Planarity -- Colorings -- Matchings -- Ramsey...

2
by Harris, John, Hirst, Jeffry L., Mossinghoff, Michael
Published 2008
Springer New York
... arrangements when a second symmetry group acts on the set of allowed colors. • Topics in combinatorial geometry...