Gunn, J.E.; Peterson, B.A. On the Density of Neutral Hydrogen in Intergalactic Space. Astrophysical Journal. 1965, 142: 1633–1641. Bibcode:1965ApJ...142.1633G. doi:10.1086/148444.引文使用过时参数coauthors (帮助)
Gunn, J.E.; Peterson, B.A. On the Density of Neutral Hydrogen in Intergalactic Space. Astrophysical Journal. 1965, 142: 1633–1641. Bibcode:1965ApJ...142.1633G. doi:10.1086/148444.引文使用过时参数coauthors (帮助)