Hideyuki Ito, Kento Aimono, and Takahiro Fujii. “LIFE CYCLE IMPACT ASSESSMENT OF NEW GROUND MATERIAL AND EMBANKMENT CONSTRUCTION METHODS CONSIDERING RECYCLING”. GEOMATE Journal, vol. 17, no. 60, Aug. 2019, pp. 49-55, https://geomatejournal.com/geomate/article/view/355.