3Vinod Chachra, John Espley. FRBROPAC [EB/OL]. http://www. vtls.com/documents.[2006-01-20 ].
4IFLA Task Force in Guidelines for OPAC Displays. Guidelines for OPAC Displays [EB/OL]. http://www. ifla. org/VII/s13/guide/opacguide03.[2006-01-20].
5IFLA Study Group on the Functional Requirements for Bibliographic Records. Functional Requirements for Bibliographic Records-Final Report [EB/OL]. http://www. ifla. org/VII/s13/frbr/frbr. pdf.[2006-01-20].
5Howarth, Lyune C. Content versus carrier. In: The principles and future of AACR, ed. Jean Weihs. Ottawa: Canadian Library Association, 1998.
6IFLA Study Group on Functional requirements for bibliographic records. Functional requirements for bibliographic records: final report, http ://www. ifia. org/Vll/s13/frbr/frbr.pdf.
7Chachra V, Espley J. Navigating FRBR with Virtua. [ 2004 -06 -08 ]. http ://www. vtls. com/documents/frbr. ppt.