@ARTICLE {9859,
author={P.S André and M.R. Ferreira},
doi={10.1049/el.2014.2501},
journal={Electronics Letters},
title={Colour multiplexing of quick-response (QR) codes},
year={2014},
month={November},
volume={50},
number={24},
pages={1828-1830},
ISSN={0013-5194}
}