Arlingto, VA : National Science Foundation, 
Title PDF t.p. (National Science Foundation, viewed Oct. 17, 2005).
"The digital collections that are the focus for this report are limited to those that can be accessed electronically, via the Internet for example. This report adopts the definition of "long-lived" that is provided in the Open Archival Information Sysyem (OAIS) standards, namely a period of time long enough for there to be concern about the impacts of changing technology"--Executive summary.