Larsen, J. O., Grimstad, E., Bhasin, R., Dhawan, A. K., Singh, R. and Verma, S. K. (2000) “Landslides and their mitigation in Gangtok, Sikkim”, Journal of Nepal Geological Society, 22, pp. 585–590. doi: 10.3126/jngs.v22i0.32434.