Equivalence of a part of derived chains of boundary-value problems for second-order ordinary differential equations
1988 ◽
Vol 8
(3)
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pp. 239-248
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1998 ◽
Vol 97
(2)
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pp. 455-470
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1995 ◽
Vol 125
(4)
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pp. 777-799
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2003 ◽
Vol 137
(2-3)
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pp. 549-570
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1976 ◽
Vol 6
(4)
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pp. 761-766
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2016 ◽
Vol 106
(3)
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1984 ◽
Vol 101
(2)
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pp. 325-347
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