WASET
    M. Yilmaz and  I. Yilmaz and  M. Uysal,  The Evaluation of Gravity Anomalies Based on Global Models by Land Gravity Data.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2018, vol. 143(11). 814 - 820
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10009763.