1. A. Einstein, Zur Elektrodynamik bewegter Körper, Annalen der Physik, 17, 891 (1905).
2. N. Straumann, On the cosmological constant problems and the astronomical evidence for a homogeneous energy density with negative pressure, arXiv:astro-ph/0203330. In: B. Duplantier and V. Rivasseau (Eds): “Vacuum energy, renormalization”, 7–51. Basel: Birkhäuser (2003).
3. J.M. Maldacena, Black Holes and Holography in String Theory. In: B. Duplantier and V. Rivasseau (Eds): Séminaire Poincaré, 61–67. (2004). The Large N Limit of Superconformal Field Theories And Supergravity, Adv. Theor. Math. Phys.
2, 231 (1998), hep-th/9711200.
4. A. Einstein, Kosmologische Betrachtungen zur allgemeinen Relativittstheorie Sitzungsber. Preuß. Akad. Wiss. Berlin, 142 (1917).
5. W. de Sitter, On the Curvature of Space, Proc. Kon. Ned. Akad. Wet.
20, 229 (1917).