1. Stamm AJ (1956) Thermal degradation of wood and cellulose. Ind Eng Chem 48:413–417
2. Kadita S, Yamada T, Suzuki M, Komatsu K (1961) Effect of heat treating condition on the hygroscopicity and dynamic young's modulus of wood. Mokuzai Gakkaishi 7:34–38
3. Hirai N, Sobue N, Asano I (1972) Studies on piezoelectric effect of wood. IV. Effects of heat treatment on cellulose crystallites and piezoelectric effect of wood. Mokuzai Gakkaishi 18:535–542
4. Fukada E, Date M, Hirai N (1968) Effect of temperature on piezoelectricity in wood. J Polym Sci 23:509–517
5. Assaf AG, Haas RH, Purves CB (1944) A study of the amorphous portion of dry, swollen cellulose by an improved thallous ethylate method. J Am Chem Soc 66:59–65