Article
MSC:
34C10,
34C11,
34K11,
34K15,
34K40 | MR 1331462 | Zbl 0837.34070 | DOI: 10.21136/CMJ.1995.128520
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References:
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[6] G.S. Ladde, V. Lakshmikantham and B.G. Zhang: Oscillation Theory of Differential Equations with Deviating Arguments. Marcel Dekker, Inc., New York, 1987. MR 1017244
[7] Z. Wang: A necessary and sufficient condition for the oscillation of higher-order neutral equations. Tohoku Math. J. 41 (1989), 575–588. DOI 10.2748/tmj/1178227728 | MR 1025323 | Zbl 0684.34068
[8] B.G. Zhang: Oscillation of first order neutral functional differential equations. J. Math. Anal. Appl. 139 (1989), 311–318. DOI 10.1016/0022-247X(89)90110-8 | MR 0996960 | Zbl 0683.34037
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