Lin, M.P.-H.M.P.-H.LinYAO-WEN CHANG2018-09-102018-09-102011http://www.scopus.com/inward/record.url?eid=2-s2.0-84885094071&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/365152Hierarchical placement with layout constraintsbook10.1007/978-1-4419-6932-3_22-s2.0-84885094071