Chen, S.-K.S.-K.ChenPan, J.-H.J.-H.PanChen, C.-M.C.-M.ChenJeng, J.-Y.J.-Y.JengCHUNG-MING CHEN2020-02-262020-02-262004https://scholars.lib.ntu.edu.tw/handle/123456789/463862Accuracy of supported root ratio estimation from projected length and area using digital radiographsjournal article10.1902/jop.2004.75.6.8662-s2.0-3543019772https://www.scopus.com/inward/record.uri?eid=2-s2.0-3543019772&doi=10.1902%2fjop.2004.75.6.866&partnerID=40&md5=a718a8c177ff6ebcd80f3e54da4e7dcf