S. Sowmyayani and  P. Arockia Jansi Rani,  An Efficient Fall Detection Method for Elderly Care System.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2019, vol. 147(3). 173 - 177
    [viewed 15 August 2020]. Available from: https://publications.waset.org/pdf/10010194.