Spirtus, V. B. “The Application of Graph Theory to Assess the Connectedness of Earthquakes in the Crimean-Black Sea Region”. Geofizicheskiy Zhurnal 35, no. 1 (February 1, 2013): 130–141. Accessed March 28, 2024. https://journals.uran.ua/geofizicheskiy/article/view/116339.