A prototype of an optical sensor for the identification of diesel oil adulterated by keroseneBoniphace Kanyathare, Kalle Kuivalainen, Jukka Räty, Pertti Silfsten, Prince Bawuah and Kai-Erik PeiponenJ. Eur. Opt. Soc.-Rapid Publ., 14 1 (2018) 3DOI: https://doi.org/10.1186/s41476-018-0071-2