MR0348232
Terry, R. D.
Raymond D. TERRY
Oscillatory Properties of a Fourth-order Delay Differential Equation, 2
Funkcialaj Ekvacioj. Serio Internacia
16
1973
213--224
http://fe.math.kobe-u.ac.jp/FE/Free/vol16/fe16-3-6.pdf
http://fe.math.kobe-u.ac.jp/FE/FE_pdf_with_bookmark/FE11-20-en_KML/fe16-213-224/fe16-213-224.pdf
http://www.ams.org/mathscinet-getitem?mr=MR0348232
fe16-213-224
1973
Oscillatory Properties of a Fourth-order Delay Differential Equation, 2
Terry, R. D.
Terry, R. D.
1
Burkowski, F.
Nonlinear oscillation of a second order sublinear functional differential equation
SIAM J. Appl. Math.
21
1971
486-490
MR0308557
2
Gollwitzer, H. E.
On nonlinear oscillations for a second order delay equation
J. Math. Anal. Appl.
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1969
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MR0239224
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Kung, G. C. T.
Oscillation and nonoscillation of differential equations with a time lag
SIAM J. Appl. Math.
21
1971
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MR0310389
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Staikos, V. A.; Petsoulas, A. G.
Some oscillation criteria for second order nonlinear delay differential equations
J. Math. Anal. Appl.
30
1970
695-701
MR0257521
5
Terry, R. D., Oscillation properties of a delay differential equation of order $2n$, Ph. D. dissertation, Michigan State University, June 1972
6
Terry, R. D.; Wong, P. K.
Oscillatory properties of a fourth order delay differential equation
Funkcialaj Ekvacioj
15
1972
209-221
MR0330708
0330708