1. J. Silk, Astrophys. J. 151, 459 (1968).
2. P. J. E. Peebles and J. T. Yu, Astrophys. J. 162, 815 (1970).
3. R. A. Sunyaev and Y. B. Zeldovich, Astrophys. Sp. Sci. 7, 3 (1970).
4. V. Springel, S. D. M. White, A. Jenkins, C. S. Frenk, N. Yoshida, L. Gao, J. Navarro, R. Thacker, D. Croton, J. Helly, et al., Nature (London) 435, 629 (2005); astro-ph/0504097.
5. R. van de Weygaert and J. R. Bond, in A Pan-Chromatic View of Clusters of Galaxies and the Large-Scale Structure, Ed. byM. Plionis,O. López-Cruz, and D. Hughes (2008), vol. 740 of Lecture Notes in Physics, Berlin Springer Verlag, p. 335.