WASET
    M. A. Meslem,  Geopotential Models Evaluation in Algeria Using Stochastic Method, GPS/Leveling and Topographic Data.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2018, vol. 143(11). 1120 - 1124
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10009821.