Multiple solutions of nonlinear boundary value problems for two-dimensional differential systems
2004 ◽
Vol 40
(6)
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pp. 797-806
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1993 ◽
Vol 45
(2)
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pp. 235-240
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1997 ◽
Vol 30
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pp. 3301-3311
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2015 ◽
Vol 17
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pp. 27-35
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1990 ◽
Vol 84
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pp. 148-164
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2015 ◽
Vol 205
(6)
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pp. 768-776
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2012 ◽
pp. 285-314
1995 ◽
Vol 37
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pp. 58-85
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2001 ◽
Vol 47
(2)
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pp. 1187-1198
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