@book{14837,
	author = {UNESCO, Working Group on Systems Analysis, Flattnitz, Karnten, Austria, June 6-10, 1983 and Schuster, P; ed.},
	title = {Stochastic phenomena and choatic behaviour in complex systems; proceedings of the fourth meeting},
	publisher = {Springer-Verlag},
	year = {1984},
	address = {Berlin}
}