Gorbunova, I. V.; Kondorskaya, N. V. (1973). "Comparison analysis of magnitude values for the daghestanian and Kirghiz earthquakes by observations of Soviet and American stations". Pure and Applied Geophysics. 103 (1): 381–386. Bibcode:1973PApGe.103..381G. doi:10.1007/BF00876415. S2CID129856658.
Gorbunova, I. V.; Kondorskaya, N. V. (1973). "Comparison analysis of magnitude values for the daghestanian and Kirghiz earthquakes by observations of Soviet and American stations". Pure and Applied Geophysics. 103 (1): 381–386. Bibcode:1973PApGe.103..381G. doi:10.1007/BF00876415. S2CID129856658.
"Об исчислении времени". Официальный интернет-портал правовой информации (in Russian). June 3, 2011. Retrieved January 19, 2019.
prodji.ru
"Города–побратимы Махачкалы". prodji.ru (in Russian). Makhachkala. September 24, 2012. Archived from the original on December 6, 2022. Retrieved February 4, 2020.
Gorbunova, I. V.; Kondorskaya, N. V. (1973). "Comparison analysis of magnitude values for the daghestanian and Kirghiz earthquakes by observations of Soviet and American stations". Pure and Applied Geophysics. 103 (1): 381–386. Bibcode:1973PApGe.103..381G. doi:10.1007/BF00876415. S2CID129856658.
"Города–побратимы Махачкалы". prodji.ru (in Russian). Makhachkala. September 24, 2012. Archived from the original on December 6, 2022. Retrieved February 4, 2020.