Liénard equation (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Liénard equation" in English language version.

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books.google.com

For a proof, see Perko, Lawrence (1991). Differential Equations and Dynamical Systems (Third ed.). New York: Springer. pp. 254–257. ISBN 0-387-97443-1.

cplire.ru

jre.cplire.ru

Pilipenko A. M., and Biryukov V. N. «Investigation of Modern Numerical Analysis Methods of Self-Oscillatory Circuits Efficiency», Journal of Radio Electronics, No 9, (2013). http://jre.cplire.ru/jre/aug13/9/text-engl.html

ipmnet.ru

eqworld.ipmnet.ru

wolfram.com

demonstrations.wolfram.com

Phase Curve And VectorField For Piecewise Linear Lienard Systems