1.
図書 |
Ivar Stakgold
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2.
図書 |
V.G. Osmolovskiĭ ; [translated from the Russian by Tamara Rozhkovskaya]
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3.
図書 |
S.L. Sobolev
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4.
図書 |
edited by V.P. Ilʹin
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5.
図書 |
Hans Sagan
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