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2. Yu. S. Gusev, in: Current Problems in Dental Caries [in Russian], Kazan' (1968), p. 15.
3. A. I. Makarychev and M. A. Sergeeva, in: Problems in Nutrition [in Russian], No. 2, 27 (1950).
4. M. G. Melik-Bogdasarova, Changes in Indices of Carbohydrate Metabolism in the Muscle and Liver of Albino Rats Receiving Diets Quantitatively and Qualitatively Deficient in Protein. Author's Abstract of Candidate's Dissertation [in Russian], Leningrad (1951).
5. S. A. Nikitin and M. G. Bugaeva, Stomatologiya, No. 1, 9 (1954).