Classification
ZCA - Documentation
6
ZBAE - Conferences
4
ZBH - Digital library
3
DWI - Information management
2
ZCB - Information science
2
AHF - Research and science
1
AQTC - Publication lists of institutions - Germany
1
CAE - Chemistry - general
1
DKAI - Unix - operating system
1
DWID - Multimedia, hypertext
1
TNI - Reactor physics
1
YRCD - Informatics, information and society
1
ZBAF - Festschrifts
1
ZBG - Library technology
1