Influence of assortativity and degree-preserving rewiring on the spectra of networks P. Van Mieghem, H. Wang, X. Ge, S. Tang and F. A. Kuipers Eur. Phys. J. B, 76 4 (2010) 643-652 Published online: 02 July 2010 DOI: 10.1140/epjb/e2010-00219-x