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Information × Registration Number 0204U005104, 0104U002465 , R & D reports Title On improvement of mathematical calculation methods for structural units vibration freguencies. popup.stage_title Head Mitsa V., Registration Date 12-03-2004 Organization Uzhgorod National University popup.description2 Structural investigations of chalcogenide materials are bosed both experimental and theoretical calculations. Quantum chemical methods give a possibility to calculate different spectra such as Raman, infrared and energies of different molecules too.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close