On the contraction principle for a differential equation with unbounded operator coefficient
1975 ◽
Vol 27
(2)
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pp. 192-194
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1971 ◽
Vol 5
(1)
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pp. 9-18
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1994 ◽
Vol 15
(5-6)
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pp. 583-598
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2011 ◽
Vol 218
(5)
◽
pp. 2113-2121
1972 ◽
Vol 5
(4)
◽
pp. 322-323
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