1. Adam, N. K.: The Physics and Chemistry of Surfaces. London 1938: Oxford.
2. —, and J. Jessop: Angle of Contact and Polarity of Solid Surfaces. J. of Chem. Soc. Vol. 127 (1925) p. 1863/1868.
3. Barkas, W. W.: Wood Water Relationships. VII. Swelling Pressure and Sorption Hysteresis in Gels. Trans. Far. Soc. Vol. 38 (1942), p. 194/209.
4. Brown, H. P., A. J. Panshin and C. C. Forsaith: Textbook of Wood Technology, Vol. II. New York 1952: McGraw-Hill.
5. Browning, B. L.: The Chemistry of Wood. New York 1963: Interscience Publishers.