C.T. Nguyen, Ha H. Bui, and R. Fukagawa. “TWO-DIMENSIONAL NUMERICAL MODELLING OF MODULAR-BLOCK SOIL RETAINING WALLS COLLAPSE USING MESHFREE METHOD”. GEOMATE Journal, vol. 5, no. 9, Sept. 2013, pp. 647-52, https://geomatejournal.com/geomate/article/view/2028.