Cheung, W.K.W.K.CheungYUNG-JEN HSU2020-05-042020-05-042007https://www.scopus.com/inward/record.uri?eid=2-s2.0-36549066928&doi=10.1016%2fj.elerap.2007.01.002&partnerID=40&md5=fd3414acf41d45fa6fef2b4c8742e633Intelligent agents in e-serviceseditorial10.1016/j.elerap.2007.01.002