On integrability conditions on the space of sections of jet-bundles
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1994 ◽
Vol 11
(3)
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pp. 567-587
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1989 ◽
Vol 04
(15)
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pp. 3819-3831
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2016 ◽
Vol 4
(3)
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pp. 323-340
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1983 ◽
Vol 388
(1794)
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pp. 195-218
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