1. K. S. Vladimirova, The Functional Pathology of the Stomach in Patients with Botkin's disease, Author's abstract of Candidate Dissertation. Saratov (1954).
2. Z. M. Volynskii, Effect of Ascorbic Acid on the State of the Liver (Clinical and Experimental Investigation), Doctorate Dissertation, Leningrad (1947).
3. E. A. Gruzina, Vrach. Delo, No. 10 (1955), p. 995.
4. G. I. Dorofeev, Functional and Morphological Changes in the Stomach in Diseases of Other Digestive Organs. Author's abstract of Doctorate Dissertation, Leningrad (1964).
5. K. S. Zamychkina, in the book: The Neuro-Humoral Regulation of Gastric Secretion [in Russian], Moscow (1936), p. 33.