1. http://www.mathe2.uni-bayreuth.de/markus/reggraphs.html
2. http://en.wikipedia.org/wiki/Tableofsimplecubicgraphs
3. Ambrus, G., Barát, J.: A contribution to queens graphs: A substitution method. Discrete Mathematics 306(12), 1105–1114 (2006)
4. Ambrus, G., Barát, J., Hajnal, P.: The slope parameter of graphs. Acta Sci. Math (Szeged) 72, 875–889 (2006)
5. Lecture Notes in Computer Science;P. Angelini,2010