1. V. S. Ivanov, Periodontal Diseases [in Russian], Moscow (2001).
2. N. A. Kodola, O. A. Khomutovskii, and T. D. Tsentilo, Periodontosis. Ultrastructure of the Gingiva and Pulp [in Russian], Kiev (1980).
3. G. I. Nepomnyashchikh, Marginal Tissues (Mucosae and Skin) in the Morphogenesis of Common Pathological Processes [in Russian], Novosibirsk (1996).
4. G. I. Nepomnyashchikh, L. M. Nepomnyashchikh, S. M. Yegunova, et al., Byull. Sibirsk. Otdelen. Akad. Med. Nauk SSSR, No. 1, 74–84 (1987).
5. G. I. Nepomnyashchikh, O. A. Pavlenko, S. V. Aidagulova, and D. L. Nepomnyashchikh, Byull. Eksp. Biol. Med., 132, No. 12, 672–677 (2001).