%L upm6430 %S International Handbooks on Information Systems %B Handbook on Ontologies %D 2009 %I Springer %K oeg, The Network of Excellence Knowledge Web, NeOn %P 551-572 %X The growing use and application of ontologies in the last years has led to an increased interest of researchers and practitioners in the development of ontologies, either from scratch o by reusing existing ones. ... %A J. Hartmann %A R. Palma %A A. Gómez-Pérez %O Ontology Engineering Group – OEG %E S. Staab %E R. Studer %T Ontology Repositories