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Integrable fourth-order difference equationsUMA MAHESWARI, C; SAHADEVAN, R.Journal of physics. A, Mathematical and theoretical (Print). 2010, Vol 43, Num 23, issn 1751-8113, 235203.1-235203.13Article

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Fourth-order differential equations for numerator polynomialsRONVEAUX, A.Journal of physics. A, mathematical and general. 1988, Vol 21, Num 15, pp L749-L753, issn 0305-4470Article

Oscillatory and asymptotic behavior of certain fourth order difference equationsSMITH, B; TAYLOR, W. E. JR.The Rocky Mountain journal of mathematics. 1986, Vol 16, Num 2, pp 403-406, issn 0035-7596Article

Preliminary group classification of a class of fourth-order evolution equationsQING HUANG; LAHNO, V; QU, C. Z et al.Journal of mathematical physics. 2009, Vol 50, Num 2, issn 0022-2488, 023503.1-023503.23Article

Constructive methods for fourth-order elliptic equationsGILBERT, R. P; LIN, W.Journal of approximation theory. 1985, Vol 44, Num 1, pp 55-68, issn 0021-9045Article

SOME OSCILLATION CRITERIA FOR FOURTH ORDER DIFFERENTIAL EQUATIONS.LOVELADY DL.1975; ROCKY MOUNTAIN J. MATH.; U.S.A.; DA. 1975; VOL. 5; NO 4; PP. 593-600; BIBL. 4 REF.Article

A PICONE IDENTITY FOR ELLIPTIC DIFFERENTIAL OPERATORS OF ORDER 4 M WITH APPLICATIONS.YOSHIDA N.1975; ATTI ACCAD. NAZ. LINCEI, R.C., CL. SCI. FIS. MAT. NAT.; ITAL.; DA. 1975; VOL. 58; NO 3; PP. 306-317; ABS. ITAL.; BIBL. 15 REF.Article

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ON A CERTAIN NON LINEAR FOURTH ORDER ORDINARY DIFFERENTIAL EQUATION.HAROON O; TEJUMOLA HO.1975; ATTI ACCAD. NAZION. LINCEI, R.C., CL. SCI. FIS. MAT. NAT.; ITAL.; DA. 1975; VOL. 58; NO 2; PP. 137-142; ABS. ITAL.; BIBL. 4 REF.Article

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On the limit cycles for a class of fourth-order differential equationsLLIBRE, Jaume; MAKHLOUF, Amar.Journal of physics. A, Mathematical and theoretical (Print). 2012, Vol 45, Num 5, issn 1751-8113, 055214.1-055214.16Article

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The jump problem in fourth-order gravityGIERING, K.Annalen der Physik (Leipzig). 1991, Vol 48, Num 8, pp 535-542, issn 0003-3804Article

New solutions in linearized R+R² gravityTEYSSANDIER, P.Astronomische Nachrichten (Print). 1990, Vol 311, Num 4, pp 209-212, issn 0004-6337, 4 p.Article

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Fourth-order difference equation for the associated classical discrete orthogonal polynomialsFOUPOUAGNIGNI, M; KOEPF, W; RONVEAUX, A et al.Journal of computational and applied mathematics. 1998, Vol 92, Num 2, pp 103-108, issn 0377-0427Article

Fourth-order difference equation for the first associated of classical discrete orthogonal polynomialsRONVEAUX, A; GODOY, E; ZARZO, A et al.Journal of computational and applied mathematics. 1998, Vol 90, Num 1, pp 45-50, issn 0377-0427Article

Remarks on stability results for the solutions of certain fourth-order autonomous differential equationsWU, X; XIONG, K.International Journal of Control. 1998, Vol 69, Num 2, pp 353-360, issn 0020-7179Article

Computational aspects of some autonomous differential equationsHAMMERSLEY, J. M; MAZZARINO, G.Proceedings of the royal society of London, series A : mathematical and physical sciences. 1989, Vol 424, Num 1866, pp 19-37, issn 0080-4630, 19 p.Article