Telephassa seminar on innovative information services and information handling : proceedings / ed. by Jos de Kort and Ellie VermeerTelephassa : workshop on databases : proceedings / ed. by Jos de Kort and Ellie VermeerTelephassa seminar on information, communication and networking : how to make full use of available information resources : proceedings / ed. by Jos de Kort and Ellie VermeerTelephassa seminar on user support, (inter-)national cooperation and strategy : important issues for libraries : proceedings / ed. by Jos de Kort and Ellie Vermeer