Gadziev, Murtazali Serazutdinovic, et al. “Arkheologicheskie Raskopki V Tsitadeli Derbenta”. History, Archeology and Ethnography of the Caucasus, vol. 2, no. 3, Sept. 2006, pp. 155-6, https://doi.org/10.32653/CH23155-156.