1John, Dimmick, Yan, Chen, and, Zhan, Li.Competition Between the Intemet and Traditional News Media:The Grat- ification-Opportunities Niche DimerLsion [J].The Journal of Media Economics, 2004(1) : 19-33.
2Mohan,J,Dutta-Bergman.Complementarity in Consump- tion of News Type Across Traditional and New Media [J]. Journal of Broadcasting & Electronic Media, 2004(1) : 41-60.
3Richard,van,der,WurtE. Are News Media Substitutes?Gratifications, Contents, and Uses [J]. Journal of Media Eco- nomics, 2011,24 : 139-157.