О науке

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This topic contains 0 replies, has 1 voice, and was last updated by  petrwwalin 5 days, 7 hours ago.

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    petrwwalin
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    Интересные научные факты. Книги о прогрессе. [url=http://www.knowledge.matrixplus.ru/]www.knowledge.matrixplus.ru[/url]

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