CHUN-YEN SHEN2018-09-102018-09-102008http://www.scopus.com/inward/record.url?eid=2-s2.0-56749151076&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/344281Quantitative sum product estimates on different setsjournal article2-s2.0-56749151076