Positive boundary value problems for pseudodifferential operators of first order
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1969 ◽
Vol 24
(1)
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pp. 59-126
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2020 ◽
Vol 51
(4)
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pp. 1399-1416
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2000 ◽
Vol 73
(4)
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pp. 493-502
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2000 ◽
Vol 13
(5)
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pp. 111-119
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2010 ◽
Vol 234
(8)
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pp. 2411-2419
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