G. Dvali & C. Gomez, "Black Hole's Quantum N-Portrait," Fortschr. Phys. 61, 742 (2013).
C. Wetterich, "Variable Gravity Universe," Phys. Rev. D 89, 024005 (2014).
G.F.R. Ellis & T. Buchert, "The Universe seen at different scales," Phys. Lett. A 347, 38--46 (2005).
S. Weinberg, Cosmology, Oxford University Press (2008).
D. Baumann, Cosmology Lecture Notes, arXiv:0907.5424 [hep-th] (2009).
P. J. E. Peebles, Principles of Physical Cosmology, Princeton University Press (1993).
A. Kehagias & A. Riotto, "Remarks on the Starobinsky model of inflation and its descendants," Fortschr. Phys. 63, 531 (2015).
N. Afshordi, D. J. H. Chung, & G. Geshnizjani, "Cuscuton: A Causal Field Theory with an Infinite Speed of Sound," Phys. Rev. D 75, 083513 (2007).
Y. Akrami et al. [Planck Collaboration], "Planck 2018 results. X. Constraints on inflation," Astron. Astrophys. 641, A10 (2020).
A. Lewis, A. Challinor, & A. Lasenby, "Efficient computation of CMB anisotropies in closed FRW models," Astrophys. J. 538, 473 (2000); CLASS code: https://github.com/lesgourg/class_public
T. Clifton, P. G. Ferreira, A. Padilla, & C. Skordis, "Modified Gravity and Cosmology," Phys. Rep. 513, 1--189 (2012).
