Ching, J.J.ChingChen, J.-R.J.-R.ChenYeh, J.-Y.J.-Y.YehPhoon, K.-K.K.-K.PhoonJIAN-YE CHING2018-09-102018-09-102011http://www.scopus.com/inward/record.url?eid=2-s2.0-84863283576&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/362887Updating uncertainties in friction angles of clean sandsjournal article10.1061/(ASCE)GT.1943-5606.0000573