1. Bernal, J.D., Science in History (Cambridge: MIT Press, 1971), rev. ed., 1:43.

2. Kircz, Joost G., "Modularity: the next form of scientific information presentation?" Journal of Documentation 54(March 1998):210-35. [doi: 10.1108/EUM0000000007185]

3. Shadle, Steven C., "A square peg in a round hole: Applying AACR2 to electronic journals," The Serials Librarian 33(1988):147-66. [doi: 10.1300/J123v33n01_09]

4. Koch, Traugott, "Description of the form and content of resources: Metadata," [formerly], accessed Sept. 18, 1998.

5. Lynch, Clifford, "Identifiers and Their Role In Networked Information Applications,", accessed Sept. 19, 1998.

6. Green, Brian, and Mark Bide, "Unique Identifiers: a brief introduction,", accessed Sept. 18, 1998.

7. Harmsze, Frédérique-Anne P. and Joost G. Kircz, "Form and content in the electronic age," paper presented at the IEEE-ADL '98 Advances in Digital Libraries Conference, Santa Barbara, Calif., April 22-25, 1998.

8. Lindquist, Mats G., "Digital library work: Meeting user needs,", accessed Sept. 12, 1998. In The Impact of Electronic Publishing on the Academic Community, edited by Ian Butterworth, (London: Portland Press, 1997),, accessed Sept. 12, 1998.