WASET
    Henok Hailemariam and  Frank Wuttke,  Estimation of Relative Subsidence of Collapsible Soils Using Electromagnetic Measurements.   journal   = {International Journal of Geotechnical and Geological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 122(2). 148 - 157
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/10006389.