"1997-12-25Z"^^ . "Anatoli Nikolaevich Boukreev (Russian: \u0410\u043D\u0430\u0442\u043E\u0301\u043B\u0438\u0439 \u041D\u0438\u043A\u043E\u043B\u0430\u0301\u0435\u0432\u0438\u0447 \u0411\u0443\u043A\u0440\u0435\u0301\u0435\u0432; January 16, 1958 \u2013 December 25, 1997) was a Russian Kazakh mountaineer who made ascents of 10 of the 14 eight-thousander peaks, i.e., peaks above 8,000 m (26,247 ft), without supplemental oxygen."@en . . . "1958Z"^^ . "Boukreev, Anatoli"@en . . "1958-01-16Z"^^ . . . . . . "Anatoli Boukreev"@en . "Anatoli Nikolaevich Boukreev"@en . . "Russian mountain climber" . . . "1997Z"^^ .