1. M. Z. Zakirov,Hypergenesis of Clay Deposits of Uzbekistan and Its Mineral Indicators [in Russian], FAN, Tashkent (1977), p. 8.
2. I. A. Tarchevskii and G. N. Marchenko,Biosynthesis and Structure of Cellulose [in Russian], Nauka, Moscow (1985), p. 37.
3. V. V. Lozovaya, V. V. Sal'nikov, and N. V. Yumashev,Formation of Cell Walls and Tissues of Linen-Flax Plant Stems [in Russian], Kazan' (1990), p. 75.
4. P. Bucheli, M. Durr, A. J. Buchala, and H. Meier,Planta, 530 (1985).
5. [Missing]