Union catalogues of libraries in Belgium: CCB (union catalogue of 28 major libraries), Zebra (union catalogue of 10 academic libraries, including the University of Antwerp (RUCA, UFSIA, UIA), City Library of Antwerp, University Library of Limburg Handelshogeschool (Antwerp)) and Antilope (union list of current periodicals in Belgian libraries, plus the TU Delft (NL), KNAW (NL), BLUW (NL), BLDSC (UK) and INIST (F)).