@incollection{Mejía-Beltrán12,
author = {Efraín Mejía-Beltrán},
title = {Rare-Earth Doped Optical Fibers},
booktitle = {Selected Topics on Optical Fiber Technology},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Moh. Yasin and Sulaiman W. Harun and Hamzah Arof},
chapter = {1},
doi = {10.5772/27118},
url = {https://doi.org/10.5772/27118}
}