Nickolay G.Kotev. – Valuable textbook for research workers to the problems from the military history of the XX Century – in journal “Istoricheski pregled” (“Historical Review”), Sofia, 2004, № 3-4, p.269-272.
– (on original language) Николай Г. Котев. Ценно пособие за изследователи на различни проблеми от военната история на ХХ век. (Мир в войнах. 54 тома (продължаваща поредица), Смоленск, изд.”Русич”, 1998-2003) – в сп. “Исторически преглед”, София, 2004, кн.3-4, с.269-272.
Nikolay Kotev
Contemporary Military Historian 
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