Tkachenko D. “In the Boundless and Inaccessible Mountains”: The Study of the Afghan Frontier by the Staff of the Separate Caucasus Corps in the Third Decade of the 19th Century. jfs [Internet]. 23Feb.2026 [cited 18Jul.2026];11(1):124-45. Available from: https://www.jfs.today/index.php/jfs/article/view/672