1. A. F. Gordeeva, in: Some Problems in Morphology [in Russian], Stavropol' (1962), p. 5.
2. B. V. Kedrovskii, The Cytology of Protein Synthesis in the Animal Cell [in Russian], Moscow (1959).
3. A. A. Klishov, Arkh. Anat., No. 5, 121 (1968).
4. L. I. Korochkin, Arkh. Anat., No. 9, 17 (1963).
5. A. Mirskii and S. Osawa, in: Functional Morphology of the Cell [in Russian], Moscow (1963), pp. 9?68.