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Петр Калинин
@pkalinin
Физик-программист и учитель
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February 22 2013
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@vikky13
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Building the Internet
Яндекс
Как мы делаем Яндекс
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Location
Нижний Новгород, Нижегородская обл., Россия
Date of birth
July 6 1985
Registered
February 25 2013
Activity
March 4 at 11:32