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Livingston, C.A. & Leonard, R.B. (1985)
Tonic descending inhibition in the stingray's spinal cord. Brain Research, 358(1–2), 339–342
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Williams, B.J. & Livingston, C.A. & Leonard, R.B. (1984)
Spinal cord pathways involved in initiation of swimming in the stingray, Dasyatis sabina: spinal cord stimulation and lesions. Journal of Neurophysiology, 51(3), 578–591

Ritchie, T.C. & Livingston, C.A. & Hughes, M.G. & Mcadoo, D.J. & Leonard, R.B. (1983)
The distribution of serotonin in the CNS of an elasmobranch fish: immunocytochemical and biochemical studies in the Atlantic stingray, Dasyatis sabina. Journal of Comparative Neurology, 221(4), 429–443
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