1. S. Nojiri, S.D. Odintsov, eConf C 0602061 (2006) 06 [Int. J. Geom. Meth. Mod. Phys. 4 (2007) 115]
2. S. Nojiri, S.D. Odintsov, Phys. Rept. 505, 59 (2011)
3. S. Capozziello, V. Faraoni, Beyond Einstein gravity: a survey of gravitational theories for cosmology and astrophysics (Springer, Berlin, 2010)
4. S. Capozziello, M. De Laurentis, Phys. Rept. 509, 167 (2011)
5. S. Nojiri, S.D. Odintsov, Phys. Lett. B 657, 238 (2007)