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References
- ↑ "International Astronomical Union" . Retrieved 2016-06-09.
- ↑ Pedersen, H. (1977). "Accurate Spectrophotometry of Early-type Spectrum Variable Stars". The Messenger. adsabs.harvard.edu. 11: 15. Bibcode:1977Msngr..11...15P.
- ↑ "A gamma-ray burst detected earlier this year is the most distant burst ever detected". www.space.com. Archived from the original on 2000-10-27.
- ↑ "CNN - Impact zone of giant meteorite confirmed - July 7, 1998". cnn.com. Retrieved 2016-05-15.
- ↑ Alan Chamberlin. "JPL Small-Body Database Browser". ssd.jpl.nasa.gov. Retrieved 2016-05-15.
- ↑ "Harja Arkæologisk Forening" [Harja Archaeological Union] (in Danish). Retrieved 2016-06-09.
- ↑ "Niels Bohr Instituttet Nyheder (in Danish) - December 8, 2015". 21 July 2009. Retrieved 2016-06-09.
- ↑ "Phys.org - December 9, 2015" . Retrieved 2016-06-09.
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