OSCILLATION CRITERIA FOR A CLASS OF THIRD-ORDER NONLINEAR DELAY DIFFERENTIAL EQUATIONS
2007 ◽
Vol 325
(1)
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pp. 54-68
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1970 ◽
Vol 30
(3)
◽
pp. 695-701
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1976 ◽
Vol 54
(3)
◽
pp. 653-665
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