@ARTICLE {27736,
author={P.M. Girão and A.  Lay-Ekuakille},
doi={http://dx.doi.org/10.1049/iet-smt.2014.0105},
journal={IET Science, Measurement and Technology},
title={Environmental Measurement and Instrumentation},
year={2014},
month={May},
volume={8},
number={3},
pages={89-154},
ISSN={1751-8822}
}