Francesco Sorrentino Mario di Bernardo Franco Garofalo Synchronizability and Synchronization Dynamics of Weighed and Unweighed Scale Free Networks with Degree Mixing. 2419-2434 2007 17 I. J. Bifurcation and Chaos 7 http://dx.doi.org/10.1142/S021812740701849X db/journals/ijbc/ijbc17.html#SorrentinoBG07