Oscillation Criteria for Fourth-Order Linear Differential Equations
1960 ◽
Vol 96
(2)
◽
pp. 296
◽
1960 ◽
Vol 96
(2)
◽
pp. 296-296
1995 ◽
Vol 194
(1)
◽
pp. 217-234
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1980 ◽
Vol 80
(3)
◽
pp. 417-417
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1989 ◽
Vol 39
(2)
◽
pp. 215-224
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2004 ◽
Vol 294
(2)
◽
pp. 621-643
◽
2002 ◽
Vol 271
(1)
◽
pp. 283-287
◽
1972 ◽
Vol 35
(1)
◽
pp. 187-187
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