?url_ver=Z39.88-2004&rft_id=doi%3A10.1145%2F1452520.1452528&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Chun&rft.au=Chun%2C+Hyunwoo&rft.aufirst=Hyunwoo&rft.date=2008&rft.title=Comparison+of+online+social+relations+in+volume+vs+interaction&rft.isbn=978-1-60558-334-1&rft.btitle=Proceedings+of+the+8th+ACM+SIGCOMM+conference+on+Internet+measurement+conference+-+IMC+'08&rft.genre=bookitem