Kyne, P.M. (2016). Ray conservation, in: Last, P.R. et al. (Ed.) Rays of the World. pp. 21-24
In: Last, P.R. et al. (2016). Rays of the World. Comstock Publishing Associates/Cornell University Press: Ithaca, London. ISBN 978-1-5017-0532-8. 790 pp., meer