M. Ahmadi, A. B. Khalkhali, H. Radan, and B. Dalili, “Investigating the effect of dimensions and distance of micro piles on the bearing capacity in a foundation settlement in gravel soils”, IAJSE, vol. 5, no. 1, pp. 170–190, Jun. 2018, doi: 10.9756/IAJSE/V5I1/1810016.