แหล่งที่มา WikiPedia: Clearing the neighbourhood http://adsabs.harvard.edu/abs/2002HiA....12..205S http://adsabs.harvard.edu/abs/2006AJ....132.2513S http://adsabs.harvard.edu/abs/2015AJ....150..185M http://www.boulder.swri.edu/~hal/PDF/planet_def.pd... //arxiv.org/abs/1507.06300 //arxiv.org/abs/astro-ph/0608359 //doi.org/10.1017%2FS1539299600013289 //doi.org/10.1086%2F508861 //doi.org/10.1088%2F0004-6256%2F150%2F6%2F185 http://www.iau.org/public_press/news/detail/iau060...
