00607naa#a2200181#i#450# EN\\bibl\72813 20250502015426.5 2413-189X 20231226b2023####ek#y0engy0150####ca RU Defensive Walls of Bosporos in the Age of Justinian Journal article Simferopol V.I. Vernadsky Crimean Federal University 2023 12 с. Journal article local География. Биография. История. 9 Архелогия. 902 Zin’ko Alexei V. Zin’ko Viktor N. cfuv.editorum.ru