scientific article; zbMATH DE number 3555994
From MaRDI portal
zbMath0357.01044MaRDI QIDQ4128508
N. Achyeser, Boris Shabat, Iossif V. Ostrovskii, Vladimir V. Marchenko, M. G. Krejn, N. V. Efimov, Mikhaïl Lavrentieff
Publication date: 1977
Full work available at URL: http://mathnet.ru/eng/umn3260
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