1. Some studies on attenuation of elastic waves in rocks;Apparao;Bull. Nat. Geophys. Res. Inst.,1967
2. Variation of attenuation of sound with frequency in rocks;Balakrishna,1964
3. Integrated studies of the elastic properties of some Indian rocks;Balakrishna,1968
4. Internal friction in rocks;Bradley,1966
5. Absorption of dilatational waves in rocks;Datta;Geoexploration,1968