WESTBY, Tom; CONSELICE, Christopher J. The Astrobiological Copernican Weak and Strong Limits for Intelligent Life. The Astrophysical Journal. 2020-06-15, roč. 896, čís. 1, s. 58. Dostupné online [cit. 2022-05-28]. ISSN1538-4357. doi:10.3847/1538-4357/ab8225.
iop.org
iopscience.iop.org
WESTBY, Tom; CONSELICE, Christopher J. The Astrobiological Copernican Weak and Strong Limits for Intelligent Life. The Astrophysical Journal. 2020-06-15, roč. 896, čís. 1, s. 58. Dostupné online [cit. 2022-05-28]. ISSN1538-4357. doi:10.3847/1538-4357/ab8225.
phys.org
University of Nottingham. Research sheds new light on intelligent life existing across the galaxy. Phys.org [online]. 2020-06-15 [cit. 2022-05-28]. Dostupné online.
WESTBY, Tom; CONSELICE, Christopher J. The Astrobiological Copernican Weak and Strong Limits for Intelligent Life. The Astrophysical Journal. 2020-06-15, roč. 896, čís. 1, s. 58. Dostupné online [cit. 2022-05-28]. ISSN1538-4357. doi:10.3847/1538-4357/ab8225.