If CIPRES Portal is useful for your work, we'd like you to cite us in the following way:

Miller, MA; Holder, MT; Vos, R; Midford, PE; Liebowitz, T; Chan, L.; Hoover, P; Warnow, T. The CIPRES Portals. CIPRES. 2009-08-04. URL:http://www.phylo.org/sub_sections/portal. Accessed: 2009-08-04. (Archived by WebCite(r) at http://www.webcitation.org/5imQlJeQa)