1Ruppa-Serrano K.Canceling print serials in favor of electronic:criteria for decision making.Library Collections,Acquisitions & Technical Services,2002,26:369～378
2Eastean C.Doubly Bold-Replacing print journals with electronic versions.Serials Review,2001 (3-4)
3Kalyan S.Non-renewal of print journal subscriptions that duplicate titles in selected electronic databases:a case study.Library Collections,Acquisitions & Technical Services,2002,26:409～421
