@ARTICLE {31782,
author={M.  Almeida and D. Pereira and N. J. Muga and M. Facão and A. N. Pinto and N. A. Silva},
doi={10.1364/OE.439992},
journal={Optics Express},
title={Secret key rate of multi-ring M-APSK continuous variable quantum key distribution},
year={2021},
month={November},
volume={29},
number={23},
pages={38669-38669},
ISSN={1094-4087}
}