On the generalized Liénard equation without the signum condition

<i>Stability by Liapunov's Direct Method With Applications</i>

Joseph La Salle, Solomon Lefschetz, R. C. Alverson · Physics Today · 1962 · 703 citations

Natural Sciences, Mathematics, Differential Equations +10

Non-Linear Differential Equations

Richard Bellman, Giovanni Sansone, Roberto Conti · Mathematics of Computation · 1965 · 345 citations

QUALITATIVE THEORIE NICHTLINEARER DIFFERENTIALGLEICHUNGEN

M. L. Cartwright · Journal of the London Mathematical Society · 1964 · 120 citations

Natural Sciences, Mathematics, Physics +6

A Liapunov function for a generalized Liénard equation

J. W. Heidel · Journal of Mathematical Analysis and Applications · 1972 · 24 citations

Natural Sciences, Mathematics, Physics +11