ArticleIssue Date2013CitationKSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS, v.7, no.7, pp.1638 - 1656PublisherKSII-KOR SOC INTERNET INFORMATION
ArticleIssue Date2012CitationKSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS, v.6, no.9, pp.2136 - 2152PublisherKSII-KOR SOC INTERNET INFORMATION