Analysis of information sources in references of the Wikipedia article "Boris Berezovsky (businessman)" in English language version.
Archived at compromat.ru on 29 December 2001 as Хранитель компромата Аминов: Березовский лично контролирует около $7 млрд "семейных" долларов: Комичные обстоятельства назначения Николая Ковалева директором ФСБ (Keeper of compromising evidence Aminov: Berezovsky personally controls about $ 7 billion of "family" dollars: Comical circumstances of the appointment of Nikolai Kovalev as director of the FSB).
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