Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL "Clark, Charles and Commission of the European Communities. Directorate-General for Telecommunications, Information Industries, and Innovation",An investigation of current practices with contractual arrangements anc copyright clearing services,,"European Commission, Directorate-General Telecommunications, Information Market, and Exploitation of Research : Office for Official Publications of the European Communities [distributor]",1995,Information management series,,9282702766,,https://cir.nii.ac.jp/crid/1130282269559181056