Libraries now only offer Web interfaces.
Yaz is a tool to access a literature database via the Z39.50 protocol.
It is a bit old-fashioned because Z39.50 is no longer up to date. With yaz, search queries are scriptable.
open opac.nebis.ch:9909 base nebis_utf find @attr 1=4 adaptive filter show 1+5 close exit
Eine andere Anfrage:
find @and @attr 1=1 @attr 5=100 "Beckmann, Andreas" @attr 1=4 @attr 5=100 "Gott Bautzen"