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 # OPAC vs. Discovery-System
 
 ## Präsentation Gerald Steilen (2012)
+http://www.slideshare.net/steilen/discoverysysteme-die-opacs-der-zukunft
 
 [](http://www.slideshare.net/steilen/discoverysysteme-die-opacs-der-zukunft)![Screenshot Steilen 2012](/images/screenshot-steilen-2012.png)