Andreas Geyer-Schulz Andreas W. Neumann Annika Heitmann Karsten Stroborn Strategic Positioning Options for Scientific Libraries in Markets of Scientific and Technical Information - the Economic Impact of Digitization. 2003 4 J. Digit. Inf. 2 http://jodi.ecs.soton.ac.uk/Articles/v04/i02/Geyer-Schulz/ db/journals/jodi/jodi4.html#Geyer-SchulzNHS03