Boltyš-kraatteri (Finnish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Boltyš-kraatteri" in Finnish language version.

refsWebsite

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1web.archive.org

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bbc.co.uk

Howard Falcon-Lang: Double space strike 'caused dinosaur extinction' bbc.co.uk. 27.8.2010. Viitattu 27.7.2014. (englanniksi)

passc.net

Boltysh Earth Impact Database. Planetary and Space Science Centre, University of New Brunswick, New Brunswick, Kanada. Arkistoitu 12.3.2013. Viitattu 27.7.2014. (englanniksi)

web.archive.org

Boltysh Earth Impact Database. Planetary and Space Science Centre, University of New Brunswick, New Brunswick, Kanada. Arkistoitu 12.3.2013. Viitattu 27.7.2014. (englanniksi)