change source] 1. ↑ Thapar, p.236 6. ↑ Adams, Willi Paul (2002). "The Drosophila standard brain". Current Biology. 12 (3): 391-404. 18. ↑ ^18.0 ^18.1 Sloane, N. J. : Princeton University Press, Stanford, California. ISBN 0-8047-2013-4