1. Contemporary Design Theory–a Collection of Surveys;Alspach,1992
2. Graph Theory;Bondy,2008
3. Graphs and Digraphs;Chartrand,2000
4. Recherches sur une nouveau espece de quarres magiques;Euler,1923
5. (g,f)-factorizations orthogonal to k subgraphs;Feng;Lect. Notes Comput. Sci.,2001