Freeman . ISBN 978-0716788812 . ^ a b Adams MD, Celniker SE, Holt RA, et al. (2000). "The genome sequence of Drosophila melanogaster " . Science 287 (5461): 2185–95. doi : 10.1126/science.287.5461.2185 . PMID 10731132 . http://www.sciencemag.org/cgi/content/abstract/287/5461/2185 . Retrieved 2007-05-25. ^ Azpiazu N, Frasch M (1993). "tinman and bagpipe: two homeo