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Message * Ėnt︠s︡iklopedicheskai︠a︡ Nauka--Opyt Proshlogo i Problemy Sovremennosti Materialy Iii Vserossiĭskoĭ Nauchno-Prakticheskoĭ Konferent︠s︡ii, 22-23 Mai︠a︡ 2008 G. - 5400001149 - 9785400001147