@ARTICLE {30065,
author={F C Ramalho and S. correia and L Fu and L.  Dias and P. Adão and P. Mateus and M.R. Ferreira and P.S André},
doi={10.1038/s41528-020-0073-1},
journal={Nature},
title={Super modules-based active QR codes for smart trackability and IoT: a responsive-banknotes case study},
year={2020},
month={June},
volume={4},
number={1},
pages={1-11},
ISSN={1476-4687}
}