@article{article9a9b9aff, title = {Spectral transition in a sparse model and a class of nonlinear dynamical systems}, author = {Marchetti, Domingos Humberto Urbano and Wreszinski, Walter Felipe and Guidi, Leonardo F and Angelo, Renato M}, year = {2007}, doi = {10.1088/0951-7715/20/3/010}, journal = {Nonlinearity} }