@article {2004,
	title = {Bifurcation of free vibrations for completely resonant wave equations},
	journal = {Boll. Unione Mat. Ital. Sez. B 7 (2004) 519-528},
	number = {SISSA;27/2004/M},
	year = {2004},
	abstract = {We prove existence of small amplitude, 2 pi/omega -periodic in time solutions of completely resonant nonlinear wave equations with Dirichlet boundary conditions for any frequency omega belonging to a Cantor-like set of positive measure and for a generic set of nonlinearities. The proof relies on a suitable Lyapunov-Schmidt decomposition and a variant of the Nash-Moser Implicit Function Theorem.},
	url = {http://hdl.handle.net/1963/2245},
	author = {Massimiliano Berti and Philippe Bolle}
}
