I. Prigogine andI. Stengers:La Nouvelle Alliance, edited byGallimard (1979).
A. A. Ardrnov, E. A. Leontovich, I. I. Gordon andA. G. Maier:Theory of Bifurcations of Dynamic Systems on a Plane, Israel Program for Scientific Translations (Jerusalem, 1971).
G. M. Vereshkov, Yu. S. Gushkan, S. V. Ivanov, V. A. Nesterenko andA. N. Poltavtsev:Sov. Phys. JETP,46, 1041 (1977).
Ya. B. Zel’dovich:Sov. Phys. JETP Lett.,12, 307 (1970).
L. Halpebn:Ark. Fys.,34, 539 (1967).
A. A. Andronov, E. A. Leontovich, I.I. Gordon andA. G. Maier:Qualitative Theory of Second-Order Dynamic Systems (Wiley, New York, N.Y., 1973).
M. Novello andR. A. Araujo:Phys. Rev. D,22, 260 (1980).
R. H. Dicke:Nature (London),192, 440, (1961).