Chang, R.-I.R.-I.ChangHsiao, P.-Y.P.-Y.HsiaoRAY-I CHANG2018-09-102018-09-101993http://www.scopus.com/inward/record.url?eid=2-s2.0-84943241534&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/303574Force directed self-organizing map and its application to VLSI cell placementconference paper10.1109/ICNN.1993.298523