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Lua i Stíl Chicago (17ú heag.)Pérez−Urbina, H., I. Horrocks, agus B. Motik. Efficient Query Answering for OWL 2. 2009.
Lua MLA (9ú heag.)Pérez−Urbina, H., et al. Efficient Query Answering for OWL 2. 2009.
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