Baldry, Ivan K.; Glazebrook, Karl; Baugh, Carlton M.; Bland‐hawthorn, Joss; Bridges, Terry; Cannon, Russell; Cole, Shaun; Colless, Matthew; Collins, Chris (2002). «The 2dF Galaxy Redshift Survey: Constraints on Cosmic Star Formation History from the Cosmic Spectrum». The Astrophysical Journal. The American Astronomical Society (published 2002 թ․ ապրիլի 20). 569 (2): 582–594. doi:10.1086/339477.