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J. Barzdins, G. Barzdins, K. Cerans, R. Liepins, and A. Sprogis. UML style graphical notation and editor for OWL 2. Perspectives in Business Informatics Research, Springer, volume 64, 2010.

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G. Barzdins, J. Barzdins, and K. Cerans. From Databases to Ontologies. Semantic Web Engineering in the Knowledge Society, IGI Global, 2009.

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