1. Atkinson, B. K., Meredith, P. G. (1987): The theory of sub-critical crack growth with applications to minerals and rocks. In: Fracture mechanics of rock. Academic Press, London, 111?162.
2. Carter, B. J., Duncan, E. J. S., Lajtai, E. Z. (in press): Fitting strength criteria to intact rock. Int. J. Geotechn. Geol. Engng.
3. Conley, P. H., Chandan, H. C., Bradt, R. C. (1978): Dynamic fatigue of foamed glass. In. Fracture mechanics of ceramics 4 (Bradt, R. C., Hasselman, D. P. H., Lange, F. F., eds.). Plenum Press, New York, 761?772.
4. Costin, L. S. (1987): Time-dependent deformation and failure. In: Fracture mechanics of rock (Atkinson, B. K., ed.). Academic Press, London, 167?215.
5. Dusseault, M. B., Mraz, D. A. (1987): Creep behaviour of salt rocks. 40th Canadian Geotechnical Conference, Regina, Saskatchewan, 301?311.