Noy, N. F., Crubézy, M., Fergerson, R. W., Knublauch, H., Tu, S. W., Vendetti, J., & Musen, M. A. (2003). Protégé-2000: An Open-Source Ontology-Development and Knowledge-Acquisition Environment: AMIA 2003 Open Source Expo. American Medical Informatics Association.

Noy, Natalya F., Monica Crubézy, Ray W. Fergerson, Holger Knublauch, Samson W. Tu, Jennifer Vendetti, e Mark A. Musen. Protégé-2000: An Open-Source Ontology-Development and Knowledge-Acquisition Environment: AMIA 2003 Open Source Expo. American Medical Informatics Association, 2003.

Noy, Natalya F., et al. Protégé-2000: An Open-Source Ontology-Development and Knowledge-Acquisition Environment: AMIA 2003 Open Source Expo. American Medical Informatics Association, 2003.