1. M. A. Aleksandrova, A. V. Revishchin, R. A. Poltavtseva, et al., Ontogenez, 34, No.3, 167–173 (2003).
2. I. I. Kalinina, Byull. Eksp. Biol. Med., 85, No.2, 76–79 (1983).
3. L. I. Korochkin, Ibid., 164–166.
4. A. A. Polyakov, Yu. P. Semchenko, and O. N. Budanovskaya, Morphology of the Epithelium in the Anterior Compartment of the Gastrointestinal and Respiratory Systems [in Russian], Moscow (1971), pp. 51–57.
5. L. A. Savitskaya and A. A. Stadnikov, Ibid., pp. 46–51.