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_aContact: the day after _cT. Folger |
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_tScientific American . - 2011. - Vol. 304 No. 1. - С. 26-31 _dNew York: Scientific American, Inc..- 2011 _wSA/2011/304/1 _02050578 _92154570 |
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_aпозаземні цивілізації _xпрогнозування |
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