U. Parlitz,
Identification of true and spurious Lyapunov exponents from time series,
Int. J. Bifurcation Chaos 2(1), 155-165 (1992);
also in: Coping With Chaos, Eds. E.Ott, T.Sauer, J.A.Yorke,
Wiley Series in Nonlinear Science, John Wiley & Sons, Inc. (New York, 1994). PDF file (856 kB)

Lj. Kocarev, K.S. Halle, K. Eckert, L.O. Chua and U. Parlitz,
Experimental demonstration of secure communication via chaotic synchronization,
Int. J. Bifurcation Chaos 2(3) (1992) 709-713;
also in: Chua's Circuit: A Paradigm for Chaos, Ed. R.N. Madan,
World Scientific Series on Nonlinear Science, Series B, Vol. 1 (Singapore, 1993). PDF file (650 kB)

U. Parlitz, L.O. Chua, Lj. Kocarev, K.S. Halle and A. Shang,
Transmission of digital signals by chaotic synchronization,
Int. J. Bifurcation Chaos 2(4), 973-977 (1992);
also in: Chua's Circuit: A Paradigm for Chaos, Ed. R.N. Madan,
World Scientific Series on Nonlinear Science, Series B, Vol. 1 (Singapore, 1993). PDF file (825 kB)

W. Lauterborn, J. Holzfuss and U. Parlitz,
New methods of noise analysis,
in: International Symposium on Propulsors and Cavitation, 22.-25. Juni 1992,
Hamburg, Germany, ed. Schiffbautechnische Gesellschaft e.V. und
Hamburgische Schiffbau-Versuchsanstalt GmbH, Hamburg, 201-206 (1992).