@incollection{Mendoza12,
author = {Sergio Mendoza},
title = {Extending Cosmology: The Metric Approach},
booktitle = {Open Questions in Cosmology},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Gonzalo J. Olmo},
chapter = {6},
doi = {10.5772/53878},
url = {https://doi.org/10.5772/53878}
}