WASET
    O. J. G. Somsen,  Outdoor Anomaly Detection with a Spectroscopic Line Detector.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2015, vol. 106(10). 1169 - 1173
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10002689.