Shirai, S. & Nakaya, K. (1990)
Interrelationships of the Etmopteridae (Chondrichthyes, Squaliformes).
In Pratt, H.L., Gruber, S.H., Taniuchi, T. (Eds.). Elasmobranchs as living resources: advances in the biology, ecology, systematics, and the status of the fisheries (pp. 347–356). NOAA Technical Report NMFS, Vol. 90