@ARTICLE {23734,
author={F C Ramalho and CF António and S. correia and L Fu and A.  S and C.A Brites and L. Carlos and P.S André and M.R. Ferreira},
doi={10.1016/j.optlastec.2017.11.023},
journal={Optics & Laser Technology},
title={Luminescent QR codes for smart labelling and sensing},
year={2018},
month={May},
volume={101},
number={101},
pages={304-311},
ISSN={0030-3992}
}