Protein-Centric Connection of Biomedical Knowledge: Protein Ontology (PRO) Research and Annotation Tools. - Cecilia N. Arighi; Darren A. Natale; Judith A. Blake; Carol J. Bult; Michael Caudy; Alexander D. Diehl; Harold J. Drabkin; Peter D'Eustachio; Alexei V. Evsikov; Hongzhan Huang; Natalia V. Roberts; Alan Ruttenberg; et al. (ICBO, 2011)

The Representation of Protein Complexes in the Protein Ontology (PRO). - Carol J. Bult; Harold J. Drabkin; Alexei V. Evsikov; Darren A. Natale; Cecilia N. Arighi; Natalia V. Roberts; Alan Ruttenberg; Peter D'Eustachio; Barry Smith 001; Judith A. Blake; Cathy H. Wu (BMC Bioinform., 2011)

The Protein Ontology: a structured representation of protein forms and complexes. - Darren A. Natale; Cecilia N. Arighi; Winona C. Barker; Judith A. Blake; Carol J. Bult; Michael Caudy; Harold J. Drabkin; Peter D'Eustachio; Alexei V. Evsikov; Hongzhan Huang; Jules Nchoutmboube; Natalia V. Roberts; et al. (Nucleic Acids Res., 2011)