1. Abishek Kumar Chaurasia, Pandey, H.K., Nainwal, H.C., Jitendra Singh and Tiwari, S.K. (2017) Stability Analysis of Rock Slopes along Gangadarshan Pauri, Garhwal, Uttarakhand. Jour. Geol. Soc. India. v.89, pp.689–696.
2. Bieniawski, Z.T. (1973) Engineering classification of jointed rock masses. Trans. South African. Inst. Civil Engg., v.15(12), pp.355–344.
3. Bieniawski, Z.T. (1975) Case studies: prediction of rock mass behaviour by the geomechanics classification. Proc. 2nd Australia–New Zealand Conference Geomechanics, Brisbane, pp.36–41.
4. Bieniawski, Z.T. (1976) Rock mass classification in rock engineering. In: Z.T. Bieniawski (Ed.) Exploration for rock engineering. Proc. Symp., no.1, pp.97–106.Cape Town: Balkema.
5. Bieniawski, Z.T. (1979) The geomechanics classification in rock engineering application. Proc. 4th Congress of the Internat. Soc. Rock Mechanics, v.2, pp.41–48.