Marder, E., Swensen, A.M., Christie, A.E., and Nusbaum, M.P. (2002) Convergence and divergence of cotransmitter systems in the crab stomatogastric nervous system. In: The Crustacean Nervous System, K. Wiese, ed. Springer-Verlag, Berlin, pp 20-33. ISBN: 9783662048436