On the Fredholm radius of integral operators of potential theory
1993 ◽
Vol 64
(6)
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pp. 1297-1313
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2010 ◽
Vol 33
(14)
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pp. 1685-1691
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1986 ◽
Vol 29
(3)
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pp. 405-411
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1992 ◽
Vol 43
(4)
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pp. 387-407
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