1. Regular factors of regular graphs;Bollobás;J. Graph Theory,1985
2. Graph Theory;Bondy,2008
3. Eigenvalues and perfect matchings;Brouwer;Linear Algebra Appl.,2005
4. Spectra of Graphs;Brouwer,2012
5. Perfect matchings, eigenvalues and expansion;Cioabă;C. R. Math. Acad. Sci. R. Can.,2005