@ARTICLE {2956,
author={R.S. Luis and A. Teixeira and P. Monteiro},
doi={10.1109/JLT.2008.926959},
journal={Journal of Lightwave Technology},
title={Optical signal-to-noise ratio estimation using reference asynchronous histograms},
year={2008},
month={March},
volume={27},
number={6},
pages={731-743},
ISSN={0733-8724}
}