?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Ye%2C+Chaoyu&rft.aulast=Ye&rft.aufirst=Chaoyu&rft.date=2014&rft.title=The+characteristics+of+casual+sessions+in+search+behaviour+logs+&rft.genre=proceeding