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<referencetext xmlns="http://eprints.org/ep2/data/2.0">Choudhury, Sayeed, et al. (2002). A framework for evaluating digital library services. D-Lib Magazine, 8(7-8), http://www.dlib.org/dlib/july02/choudhury/07choudhury.html.

Chowdhury, Gorbinda G. (2002).  Digital libraries and reference services: Present and future. Journal of Documentation, 58(3), 258-283.

Cole, Timothy W., Allen, Robert S., and Schmitz, John G. (2000). Building an outreach digital library collection. Illinois Libraries, 82(4), 239-250.

Condron, Lyn, and Tittemore, Cecilia Piccolo. (2001). Listservs and listprocs for catalogers. Cataloging and Classification Quarterly, 32(3), 25-29.

Cruz, José Manuel Barrueco, Krichel, Thomas, and Trinidad, Jerimiah C. (2003). Organizing current awareness in a large digital library. Presented at 2003 Conference on Users in the Electronic Information Environments in Espoo, Finland, September 8-9, 2003. http://openlib.org/home/krichel/papers/espoo.pdf.

Cruz, José Manuel Barrueco, and Krichel, Thomas. (2000). Cataloging economics preprints: An introduction to the RePEc project. Journal of Internet Cataloging, 3(3), 227 -241. http://openlib.org/home/krichel/papers/shankari.pdf.

Davis, James, and Lagoze, Carl. (2000). NCSTRL: Design and development of a globally distributed digital library. Journal of the American Society for Information Science, 51(3), 273-280. 

Fox, Edward, and Urs, Shalini. (2002). Digital libraries. Annual Review of Information Science and Technology, 36, 503-589.

Krichel, Thomas. (2000). RePEc: An open library for economics: To appear as a book chapter. http://openlib.org/home/krichel/papers/salisbury.html.

Saracevic, Tefko. (2000). Digital library evaluation: Toward an evolution of concepts. Library Trends, 49(2), 350-369.

Schwarts, Candy. (2000). Digital libraries: An overview. Journal of Academic Librarianship, 26(6), 385-393.

Severiens Thomas, et al. (2000). PhysDoc - A distributed network of physics institutions documents: Collecting, indexing, and searching high quality documents by using Harvest. D-Lib Magazine, 6(12), http://www.dlib.org/dlib/december00/severiens/12severiens.html. 

Sloan, Bernie. (2001). Reference service in the digital library: A report on the ready for reference project. Library Hi Tech News, 18(10), 14-19. 

Stackpole, Laurie E., and King, Richard James. (1999). Electronic journals as a component of the digital library. Issues in Science and Technology Librarianship, (22), http://www.library.ucsb.edu/istl/99-spring/article1.html. 

Stemper, James A., and Butler, John T. (2001). Developing a model to provide digital reference services. Reference Services Review, 29(3), 172-188.

Suleman, Hussein, and Fox, Edward. (2001). The Open Archives Initiative: Realizing simple and effective digital library interoperability. Journal of Library Administration, 35(1-2), 125-145.

Xie, Hong, and Wolfram, Dietmar. (2002). State digital library usability: Contributing organizational factors. Journal of the American Society for Information Science &amp; Technology, 53(13), 1085-1097</referencetext>
