@INPROCEEDINGS {31960,
author={D. Duarte and R.N.  Nogueira and L. Bilro},
booktitle={26th International Conference on Plastic Optical Fibres POF 2017},
title={Portable, in-line and low cost refractive index sensor for liquids},
year={2017},
month={September},
volume={},
pages={pp88 -1-pp88 -5} 
}
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