1. Harmsen, Bernd. The Electronic Library
2. McKenna, Brian. The Electronic Library [Jun 1999]
3. Cueva, Alejandro Leal. The Electronic Library [June 1998]
4. McKenna, Brian. The Electronic Library [June 1998]
5. Cibbarelli, Pamela. The Electronic Library [June 1998]
6. Llorens, J.~Trenor, A. The Electronic Library [April 1993]