An initial value problem for a class of equations of mixed type
1949 ◽
Vol 55
(2)
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pp. 165-175
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1981 ◽
Vol 30
(3)
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pp. 435-452
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2015 ◽
Vol 13
(5)
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pp. 2691-2707
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2007 ◽
Vol 330
(2)
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pp. 1139-1151
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Keyword(s):
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2002 ◽
Vol 275
(1)
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pp. 369-385
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2012 ◽
Vol 253
(7)
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pp. 1959-2024
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Keyword(s):
2004 ◽
Vol 47
(1)
◽
pp. 13-22
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Keyword(s):