WASET
    Agata M. Kołodziejczyk and  Mateusz Harasymczuk and  Pierre-Yves Girardin and  Lucie Davidová,  Circadian Clock and Subjective Time Perception: A Simple Open Source Application for the Analysis of Induced Time Perception in Humans.   journal   = {International Journal of Cognitive and Language Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2017, vol. 123(3). 119 - 125
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/10006675.