1. Hayashi, M., Kanagawa, T., Hibino, S., Motozima, M., Kitahara, Y. (1979): Detection of anisotropic geo-stresses trying by acoustic emission, and nonlinear rock mechanics on large excavating caverns. In: Proc., 4th Int. Congress on Rock Mechanics, Montreux, vol. 2, 211?218.
2. Holcomb, D. J. (1983): Using acoustic emissions to determine in-situ stress: problem and promise. In: Proc., Applied Mechanics, Bioeng. and Fluids Eng. Conference, Houston, 11?21.
3. Holcomb, D. J. (1985): Summary of discussions on behaviour of solids with a system of cracks. In: Bazant, Z. P. (ed.) Mechanics of geomaterials: rocks, concretes, soils. J. Wiley, New York, 571?573.
4. Holcomb, D. J., Costin, L. S. (1986): Detection damage surfaces in brittle materials using acoustic emissions. Trans. ASME 53, 536?544.
5. Holcomb, D. J., Stone, C. M., Costin, L. S. (1990): Combining acoustic emission locations and a microcrack damage model to study development of damage in brittle materials. In: Hustrulid, W. A., Johnson, G. A. (eds.) Proc., 31st U. S. Symposium, Rock Mechanics Contributions and Challenges. Balkema, Rotterdam, 645?651.