On the problem of stability for higher-order derivative Lagrangian systems
1987 ◽
Vol 14
(4)
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pp. 311-319
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1987 ◽
Vol 196
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pp. 123-134
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2018 ◽
Vol 37
(5)
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pp. 5807-5828
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1990 ◽
Vol 49
(2)
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pp. 198-221
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