1. Weinberg, S.: The cosmological constant problem. Rev. Mod. Phys. 61, 1 (1989)
2. Perlmutter, S., et al.: (Supernova Cosmology Project), Measurements of Omega and Lambda from 42 high redshift supernovae. Astrophys. J. 517, 565 (1999). arXiv:astro-ph/9812133
3. Riess, A.G., et al.: (Supernova Search Team), Observational evidence from supernovae for an accelerating universe and a cosmological constant. Astron. J. 116, 1009 (1998). arXiv:astro-ph/9805201
4. Ade, P.A.R. et al.: (Planck), Planck 2015 results. XIII. Cosmological parameters, Astron. Astrophys. 594, A13 (2016), arXiv:1502.01589
5. Bousso, R.: The cosmological constant. General Relativ. Gravit. 40, 607 (2008). arXiv:0708.4231