Prakash, R., R. K. Singh, G. Suresh, J. L. Gautam, S. K. Prajapati, and H. N. Srivastava. “Source Characteristics of the 18 September 2011 Sikkim Earthquake and Zoning”. Annals of Geophysics, vol. 61, no. 4, Aug. 2018, p. SE451, doi:10.4401/ag-7585.