https://www.interez.sk/na-sibiri-sa-po-130-tisic-rokoch-topi-permafrost-rucaju-sa-cesty-tvoria-giganticke-kratery/2a7d78c800000578-3159067-vasily_bogoyavlensky_shown_above_visiting_crater_b2_said_some_of-a-8_1436788621536/ byť smart je interez Sun, 06 Aug 2017 15:12:41 +0000 hourly 1