@ARTICLE {18988, author={J. Torres and António Baptista Baptista and VMM Machado}, doi={10.1109/JLT.2013.2263633}, journal={Journal of Lightwave Technology}, title={Coupling Analysis in Concentric Ring Waveguides}, year={2013}, month={July}, volume={31}, number={13}, pages={2140-2145}, ISSN={0733-8724} }Create and download bib file