Boris Yeltsin biography/Boris-Yeltsin https://www.britannica.com/biography/Boris-Yeltsin Boris Yeltsin url Boris Yeltsin Boris Yeltsin Encyclopædia Britannica Boris Yeltsin resigning from office on Dec. 31, 1999 Boris Yeltsin ID ID ID Britannica (онлайн) Britannica (анлайн) https://www.britannica.com/biography/Boris-Yeltsin Encyclopædia Britannica Boris Eltsine Boris Nikolaevič El'cin Britannica (онлайн) Boris Yeltsin https://www.britannica.com/biography/Boris-Yeltsin ボリス・エリツィン Encyclopædia Britannica Encyclopædia Britannica Boris Yeltsin Encyclopædia Britannica Boris Yeltsin url biography/Boris-Yeltsin Encyclopædia Britannica Boris Yeltsin