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2. I. M. Markelov, Lab. Delo, No. 6, 372 (1964).
3. R. Portocalé and V. Boeru, Vopr. med. Khimii, No. 4, 310 (1959).
4. A Universal Apparatus for Electrophoresis [in Russian], Kiev (1964).
5. V. D. Uspenskaya, In the book: Modern Methods in Biochemistry [in Russian], Moscow, 1 (1964), p. 87.