1. The description and classification of weathered rock for engineering purposes;Anon,1995
2. Arel, E., Önalp, A., 2004. Diagnosis of the transition from rock to soil in a granodiorite. J. Geotech. Geoenviron. Eng., ASCE 130, 968–974.
3. Barroso, E.V., 1993. Study of geological characteristics and geotechnical behavior of a Leptinite weathering profile. M.Sc. Thesis. Department of Geology, Federal University of Rio de Janeiro, Brazil, 251pp. (in Portuguese).
4. Basic properties of weathered gneissic rocks in Rio de Janeiro, Brazil;Barroso,1993
5. Rock Quality, Seismic Velocity, Attenuation and Anisotropy;Barton,2007