Elena C. Tamaş and  Grațiela M. Țârlea and  Gianni Flamaropol and  Dragoș Hera,  Lighting Consumption Analysis in Retail Industry: Comparative Study.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2018, vol. 138(6). 659 - 665
    [viewed 02 July 2020]. Available from: https://publications.waset.org/pdf/10009146.