Asymptotic solution for singular perturbation problems of difference equation
1990 ◽
Vol 11
(7)
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pp. 637-650
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1991 ◽
Vol 39
(3-4)
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pp. 229-238
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1966 ◽
Vol 23
(1)
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pp. 26-86
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1992 ◽
Vol 9
(2)
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pp. 143-155
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1998 ◽
Vol 92
(2-3)
◽
pp. 101-123
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1997 ◽
Vol 77
(1)
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pp. 59-74
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2013 ◽
Vol 5
(4)
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pp. 250-257
2016 ◽
Vol 9
(1)
◽
pp. 53
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