Gibbons, M. J., Sulaiman, A., Hissmann, K., Schauer, J., McMillan, I., & Wickens, P. A. (2000). Video observations on the habitat association of demersal nekton in the midshelf benthic environment off the Orange River, Namibia. South African Journal of Marine Science, 22(1), 1-7. doi:10.2989/025776100784125708.