Columbia subject headings:
Information storage and retrieval systems.
Libraries--Germany (West)--Automation.
Library science--Germany (West)--Data processing.
Library science--Technological innovations--Germany (West)
Harvard subject headings:
Information storage and retrieval systems
Libraries--Germany (West)--Automation.
Library science--Germany (West)--Data processing.
Library science--Technological innovations--Germany (West)
Princeton subject headings:
Information storage and retrieval systems.
Libraries--Germany (West)--Automation.
Library science--Germany (West)--Data processing.
Library science--Germany (West)--Technological innovations.