APEL is a CD ROM product which will be updated quarterly.
Current plans call for five years retention of each journal.
APEL also includes practice guidelines produced by the American Psychiatric Association. Project Elsevier Science Publishing and nine major U.S. universities have recently concluded a five-year project to study the viability of digital libraries. The universities in turn developed systems to deliver these electronic journals to their users. The reality of cost is that digital libraries are not necessarily less expensive than print. Graduate students adopted the new technology more frequently than faculty.