Gott III, J. Richard; Jurić, Mario; Schlegel, David «A Map of the Universe». The Astrophysical Journal, 624, 2, 10-05-2005. DOI: 10.1086/428890 [Consulta: 31 maig 2016].
Gott III, J. Richard; Jurić, Mario; Schlegel, David «A Map of the Universe». The Astrophysical Journal, 624, 2, 10-05-2005. DOI: 10.1086/428890 [Consulta: 31 maig 2016].