On the spectrum of a two-dimensional generalized periodic Schrödinger operator. II
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2008 ◽
Vol 176
(2)
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pp. 275-323
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1998 ◽
Vol 116
(1)
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pp. 846-855
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2013 ◽
Vol 24
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pp. 939-948
2015 ◽
Vol 49
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pp. 210-213
2013 ◽
Vol 54
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pp. 994-1004
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