A Wide Spectral Range Reflectance and Luminescence Imaging System. - Tapani Hirvonen; Niko Penttinen; Markku Hauta-Kasari; Mika Sorjonen; Kai-Erik Peiponen (Sensors, 2013)

Hand-Held Refractometer-Based Measurement and Excess Permittivity Analysis Method for Detection of Diesel Oils Adulterated by Kerosene in Field Conditions. - Boniphace Kanyathare; Kai-Erik Peiponen (Sensors, 2018)