Faster Factfinding With Digital Libraries?
http://www.stc.org/confproceed/1997/PDFs/PG291-.PDF

Barnett, Mark R.
STC Proceedings
1997

Abstract:

This paper covers the usability testing of a prototype digital library. The library holds technical manuals for scientific instruments. Findings show test subjects can locate desired documents faster with this digital library than a corresponding paper library. However, the same subjects can locate desired information faster in a paper document than a digital one. Finally, most subjects reported they would prefer to using the online library of technical documents over the library of paper ones.