@book{18219,
	author = {Summer School on `Recent Mathematical Methods in Nonlinear Wave Propagation', C.I.M.E., Montecatini Terme, Italy, May 23-31, 1994 and Bolliat, G.},
	title = {Recent mathematical methods in nonlinear wave propagation},
	publisher = {Springer-Verlag,},
	year = {1996},
	address = {Berlin:}
}