Cailliet, G.M. & Radtke, R.L. (1987)
A progress report on the electron microprobe analysis technique for age determination and verification in elasmobranchs. In R.C. Summerfelt & G.E. Hall, eds., Age and growth of fish. Iowa State U. Press, Ames, Iowa. pp. 359–369, figs 1–5
Cailliet, G.M. & Radtke, R.L. & Welden, B.A. (1986)
Elasmobranch age determination and verification: a review. In Uyeno, T. & Arai, R. & Taniuchi, T. & Matsuura, K. (Eds) Proceedings of the second international conference on Indo-Pacific fishes. Ichthyological Society of Japan, Tokyo: 345–360, figs 1–3