The center problem for the class of $$\varLambda -\varOmega $$ differential systems
2019 ◽
Vol 267
(11)
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pp. 6409-6446
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2015 ◽
Vol 251
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pp. 180-191
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Keyword(s):
Keyword(s):
2016 ◽
Vol 1
(1)
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pp. 79-86
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Keyword(s):
2016 ◽
Vol 73
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pp. 250-267
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2009 ◽
Vol 19
(01)
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pp. 435-443
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Keyword(s):
1983 ◽
Vol 3
(4)
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pp. 361-368
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