Yang, D.-N.D.-N.YangChen, Y.-L.Y.-L.ChenLee, W.-C.W.-C.LeeMING-SYAN CHEN2018-09-102018-09-102011http://www.scopus.com/inward/record.url?eid=2-s2.0-80051806287&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/364744On socialtemporal group query with acquaintance constraintconference paper2-s2.0-80051806287