@ARTICLE {28177,
author={M. G. Silveirinha},
doi={10.1038/s41467-018-08215-5},
journal={Nature Communications},
title={Quantized Angular Momentum in Topological Optical Systems},
year={2019},
month={January},
volume={10},
number={349},
pages={1-8},
ISSN={2041-1723}
}