खोज परिणाम - Israel Program for Scientific Translations
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91
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Direct methods of qualitative spectral analysis of singular differential operators.
प्रकाशित 1965पुस्तक -
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Terrestrial mollusks of the fauna of the U.S.S.R. (Nazemnye molyusski fauny SSSR)
प्रकाशित 1962पुस्तक -
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