WASET
    Aneta Oblouková and  Eva Vítková,  Validation of the Linear Trend Estimation Technique for Prediction of Average Water and Sewerage Charge Rate Prices in the Czech Republic.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2023, vol. 200(8). 550 - 555
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10013219.