Sequence Ontology Publications

Sequence Ontology Annotation Guide
Karen Eilbeck and Suzanna E. Lewis.
Comparative and Functional Genomics (2004) 5:642-647

The Sequence Ontology: A tool for the unification of genome annotations
Eilbeck K., Lewis S.E., Mungall C.J., Yandell M., Stein L., Durbin R., Ashburner M.
Genome Biology (2005) 6:R44