NewGenLib FOSS Library Management System
From the post:
EIFL-FOSS is organising a free webinar on NewGenLib (NGL), an open-source Library Management System (ILS). The event will take place this coming Friday, March 15th, 2013 at 09.00-10.00 GMT / UK time (10.00-11.00 CET / Rome, Italy). The session is open to anyone to attend but places are limited, so registration is recommended.
NGL, an outcome of collaboration between Verus and Kesavan Institute of Information and Knowledge management, has been implemented in over 30 countries in at least 4 different languages supporting fully international library metadata standards. The software runs on Windows or Linux and is designed to work equally well in one single library as it does across a dispersed network of libraries.
URL for more info: http://www.eifl.net/events/newgenlib-ils-windows-and-linux-free-webina
As you already know, there is no shortage of vendor-based and open source library information systems.
That diversity is an opportunity to show how topic maps can make distinct systems appear as one, while retaining their separate character.