Erik van Ettinger November 12, 2009 Holland Surfing Association announces SurfBank Scheveningen by Surfreefs (6 surf magazine) Erik van Ettinger November 12, 2009 View fullsize
Erik van Ettinger April 4, 2008 Surfreefs performs feasibility study to an artificial SurfReef at Scheveningen Erik van Ettinger April 4, 2008
Erik van Ettinger May 19, 2005 Research to artificial surf reefs at Delft university of Technology Erik van Ettinger May 19, 2005
