00526naa#a2200169#i#450# EN\\bibl\40928 20240503121436.5 2307-1400 20201205b2020####ek#y0engy0150####ca RU The causes of crisis and weakening of the Euro-Atlantic security system in the XXI century Journal article Saint-Petersburg Strategy of the Future 2020 7 с. Journal article local Политика. 32 Khlopov O. A. futurepubl.ru