Demir-Kapu (ukreplenie A.XIX) v sisteme oboronitel'nych sooruženij Mangupa. Demir-Kapu (fortification A. XIX) in the system of defensive constructions of Mangup - Gercen, A. G. (Materialy po Archeologii, Istorii i Etnografii Tavrii, 11 (2005), 2005)