BERBERIAN, M., and I. NAVAI. 1978. “Naghan (Chahar Mahal Bakhtiari-High Zagros, Iran) Earthquake of 6 April 1977. A Preliminary Field Report and a Seismotectonic Discussion”. Annals of Geophysics 31 (1):5-27. https://doi.org/10.4401/ag-4741.