“Sonderstab Kaukasus”. p. 2. Personal records of P. von zur Mühlen Sergei Chuyev. Damned soldiers. Moscow, "YAUZA, EKSMO, 2004 "Предприятие "Цеппелин"". Archived from the original on 2009-02-04. Retrieved 2014-02-08. Sotskov Lev Filippovich Neizvestny Separatizm: At the Service of SD and Abwehr. Excerpts from Testimony of Walter Schellenberg, taken at Nuremberg, Germany, 13 November 1945, Page 1623. Unternehmen Zeppelin: The Deployment of SS Saboteurs and Spies in the Soviet Union, 1942-1945 Perry Biddiscombe Europe-Asia Studies, Vol. 52, No. 6 (Sep. 2000), pp. 1115-1142. Le Caucase dans les Plans Stratégiques de L’Allegmagne 1941-1945 Georges Mamoulia. Alimardanbek Topchubashev: Letters from Paris: Vilayat Kuliev. Baku
“Sonderstab Kaukasus”. p. 2. Personal records of P. von zur Mühlen Sergei Chuyev. Damned soldiers. Moscow, "YAUZA, EKSMO, 2004 "Предприятие "Цеппелин"". Archived from the original on 2009-02-04. Retrieved 2014-02-08. Sotskov Lev Filippovich Neizvestny Separatizm: At the Service of SD and Abwehr. Excerpts from Testimony of Walter Schellenberg, taken at Nuremberg, Germany, 13 November 1945, Page 1623. Unternehmen Zeppelin: The Deployment of SS Saboteurs and Spies in the Soviet Union, 1942-1945 Perry Biddiscombe Europe-Asia Studies, Vol. 52, No. 6 (Sep. 2000), pp. 1115-1142. Le Caucase dans les Plans Stratégiques de L’Allegmagne 1941-1945 Georges Mamoulia. Alimardanbek Topchubashev: Letters from Paris: Vilayat Kuliev. Baku