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Roos, M. (2008). „Expansion of the Universe – Standard Big Bang Model”. u: Engvold, O.; Stabell, R.; Czerny, B. i dr... Astronomy and Astrophysics. Encyclopedia of Life Support Systems. EOLSS publishers. arXiv:0802.2005. »This singularity is termed the Big Bang.«
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(Translated in: „A Homogeneous Universe of Constant Mass and Growing Radius Accounting for the Radial Velocity of Extragalactic Nebulae”. Monthly Notices of the Royal Astronomical Society91: 483-490. 1931. Bibcode1931MNRAS..91..483L.)
Schewe, P. (2005). „An Ocean of Quarks”. Physics News Update (American Institute of Physics) 728 (1). Arhivirano iz originala na datum 2005-04-23. Pristupljeno 2015-04-26.