Scalar fluctuations of the scalar metric during inflation from a non-perturbative 5D large-scale repulsive gravity modelJosé Edgar Madriz Aguilar, Luz M. Reyes, Claudia Moreno and Mauricio BelliniEur. Phys. J. C, 73 10 (2013) 2598DOI: https://doi.org/10.1140/epjc/s10052-013-2598-0