2) R. M. Buckley and G. J. Hueckel : Analysis of visual transects for fish assessment on artificial reefs, Bull, Mar. Sci., 44, pp.893-898, 1989.
3) E. A. Shinn and R. I. Wicklund:Artificial reef observations from a manned submersible off southeast Florida. Bull. Mar. Sci., 44, pp.1041-1050, 1989.