Virk, H.S., Walia, V., Sharma, A.K., Kumar, N. y Kumar, R. 2000. Correlation of radon anomalies with microseismic events in Kangra and Chamba valleys of N-W Himalaya. Geofísica Internacional. 39, 3 (jul. 2000), 221–227. DOI:https://doi.org/10.22201/igeof.00167169p.2000.39.3.327.