Dietrich A. Stephan, Elizabeth Gillanders, Deborah Vanderveen, Diana Freas-Lutz, Graeme Wistow, Andreas D. Baxevanis, Christiane M. Robbins, Ann Van Auken, Matthew I. Quesenberry, Joan Bailey-Wilson, Suh-Hang Hank Juo, Jeffrey M. Trent, Lois Smith, Michael J. Brownstein
Proc Natl Acad Sci U S A. 1999 Feb 2; 96(3): 1008–1012. doi: 10.1073/pnas.96.3.1008