An Informal Cataloging Network. - Shmuel Sever (Essen Symposium, 1984)

CD-Rom and Bridging of Cultural and Technological Gaps in Developing Countries. - Shmuel Sever (Essen Symposium, 1988)

The Use of Microcomputers in Israeli Public Libraries. - Shmuel Sever; Yosef Branse (Essen Symposium, 1989)

"Free" or "Fee" Information Resources in Libraries - The Case of Small and/or Developing Countries. - Shmuel Sever (Essen Symposium, 1990)

Managing the Virtual Library: Issues and Challenges. - Shmuel Sever; Cecilia H. Harel (Essen Symposium, 1994)

The Economics of the Virtual Library in Israel. - Shmuel Sever; Eli Simon (Essen Symposium, 1995)