WASET
Kołodziejczyk, A. , Harasymczuk, M. , Girardin, P. , Davidová, L.. "Circadian Clock and Subjective Time Perception: A Simple Open Source Application for the Analysis of Induced Time Perception in Humans". World Academy of Science, Engineering and Technology, Open Science Index 123, International Journal of Cognitive and Language Sciences, (2017), 11(3), 119 - 125.