On the strength of complex singularities in a mass variable
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1979 ◽
Vol 30
(3)
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pp. 309-323
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2004 ◽
Vol 156
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pp. 405-443
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1997 ◽
Vol 28
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pp. 1457-1489
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2015 ◽
Vol 234
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pp. 0-0
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1983 ◽
Vol 50
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pp. 138-161
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