Harafuji, Naoe, David N Keys, and Michael Levine. (2002) 2002. “Genome-Wide Identification of Tissue-Specific Enhancers in the Ciona Tadpole.”. Proc Natl Acad Sci U S A 99 (10): 6802-5.

Keys, David N, Michael Levine, Richard M Harland, and John B Wallingford. (2002) 2002. “Control of Intercalation Is Cell-Autonomous in the Notochord of Ciona Intestinalis.”. Dev Biol 246 (2): 329-40.