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LIENARD EQUATIONS AND CONTROLBARBANTI L.1980; LECTURE NOTES MATH.; DEU; DA. 1980; NO 799; PP. 1-22; BIBL. 11 REF.Conference Paper

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PERIODIC SOLUTIONS FOR LIENARD SYSTEMSBEBERNES J; MARTELLI M.1979; BOLL. UN. MAT. ITAL.; ITA; DA. 1979; VOL. 16A; NO 2; PP. 398-405; ABS. ITA; BIBL. 7 REF.Article

CONVERGENCE AND ALMOST PERIODICITY OF SOLUTIONS OF FORCED LIENARD EQUATIONS.FINK AM.1974; S.I.A.M. J. APPL. MATH.; U.S.A.; DA. 1974; VOL. 26; NO 1; PP. 26-34; BIBL. 5 REF.Article

ON THE UNIQUENESS OF LIMIT CYCLE OF LIENARD'S EQUATIONZENG XIANWU.1982; SCI. SIN., SER. A, MATH. PHYS. ASTRON. TECH. SCI.; ISSN 504289; CHN; DA. 1982; VOL. 25; NO 6; PP. 583-592; BIBL. 8 REF.Article

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COMPARISON AND OSCILLATION THEORY FOR LIENARD'S EQUATION WITH POSITIVE DAMPING.BENSON DC.1973; S.I.A.M. J. APPL. MATH.; U.S.A.; DA. 1973; VOL. 24; NO 2; PP. 251-271; BIBL. 10 REF.Article

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Negative solutions of the generalized Liénard equationHRICISAKOVA, D.Hiroshima mathematical journal. 1993, Vol 23, Num 1, pp 155-160, issn 0018-2079Article

On the conditions of a center of the Liénard equationZHOU YURONG; WANG XIANGRONG.Journal of mathematical analysis and applications. 1993, Vol 180, Num 1, pp 43-59, issn 0022-247XArticle

NONUNIFORM NONRESONANCE CONDITIONS AT THE TWO FIRST EIGENVALUES FOR PERIODIC SOLUTIONS OF FORCED LIENARD AND DUFFING EQUATIONSMAWHIN J; WARD JR.1982; ROCKY MT. J. MATH.; ISSN 0035-7596; USA; DA. 1982; VOL. 12; NO 4; PP. 643-654; BIBL. 10 REF.Article

PERIODIC SOLUTIONS OF SOME FORCED LIENARD DIFFERENTIAL EQUATIONS AT RESONANCEMAWHIN J; WARD JR.1981; SEMIN. MATH. APPL. MEC.; BEL; DA. 1981; NO 1-2; PP. II1-II22; BIBL. 10 REF.Article

Uniqueness of limit cycles of generalised Lienard systems and predator-prey systemsXUN-CHENG HUANG.Journal of physics. A, mathematical and general. 1988, Vol 21, Num 13, pp L685-L691, issn 0305-4470Article

Continuation results for differential equations by two Liapunov functionsHARA, T; YONEYAMA, T; SUGIE, J et al.Annali di matematica pura ed applicata. 1983, Vol 83, Num 4, pp 79-92, issn 0373-3114Article

ON THE EXISTENCE OF PERIODIC SOLUTIONS FOR LIENARD'S EQUATIONVILLARI G.1983; NONLINEAR ANALYSIS; ISSN 0362-546X; USA; DA. 1983; VOL. 7; NO 1; PP. 71-78; BIBL. 10 REF.Article

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Continuability of solutions of the generalized Liénard system with time delaySUGIE, J; YOSIDA, K.Proceedings of the Japan Academy. Series A Mathematical sciences. 1984, Vol 60, Num 10, pp 357-360, issn 0386-2194Article

The Hopf cyclicity of Lienard systemsMAOAN HAN.Applied mathematics letters. 2001, Vol 14, Num 2, pp 183-188, issn 0893-9659Article

On the qualitative behavior of solutions of Liénard equationVILLARI, G.Journal of differential equations (Print). 1987, Vol 67, Num 2, pp 269-277, issn 0022-0396Article