BibTex format
@article{Pendry:2021:10.1364/josab.427682,
author = {Pendry, J and Galiffi, E and Huidobro, P},
doi = {10.1364/josab.427682},
journal = {Journal of the Optical Society of America B},
pages = {3360--3366},
title = {Gain in time dependent media - a new mechanism},
url = {http://dx.doi.org/10.1364/josab.427682},
volume = {38},
year = {2021}
}