1. 4-regular integral graphs;Cvetković;Publ. Elektroteh. Fak. Univ. Beogr. Ser. Mat.,1998
2. Spectral moments of fullerene graphs;Cvetković;MATCH Commun. Math. Comput. Chem.,2004
3. On the number of matchings in regular graphs;Friedland;Electron. J. Combin.,2008
4. Matchings and walks in graphs;Godsil;J. Graph Theory,1981
5. Algebraic Graph Theory;Godsil,2001