1. Ayarkwa, J., Hirashima, Y., Ando, K., Sasaki, Y. 2001. Monitoring acoustic emissions to predict modulus of rupture of finger-joints from tropical African hardwoods. Wood and Fiber Science, 33(3): 450–464.
2. Byrne, A., Uzunovic, A. 2000. Does beetle-killed lodgepole pine lack strength? Forintek Canada Corp [R]. Internal Report. Vancouver, BC.9p
3. Cui Yingying, Zhang Houjiang, Sheng Wei. 2005. The study on stress grading for pinus sylvestris var. Mogonica based on transverse vibration method. Forestry Machinery & Woodworking Equipment, 33(10): 24–28. (in Chinese)
4. GB1936.2-91. 1991. Method for determination of the modulus of elasticity in static bending of wood [s].
5. Hu Yingcheng, Wang Fenghu, Liu Yixing. 2001a. Nondestructive test of the dynamic deflection modulus of elasticity for particleboard. Journal of Northeast Forestry University, 29(1): 9–11. (in Chinese)