"A New Style of Fast Sailing"(PDF). Toulouse, France: Kaep Diffusion Sarl. Retrieved January 18, 2016. The Kaep is a high performance ultra light proa fitted with an easily manageable windsurf rig of 5 sq. mtr.
multihull.de
"Kaep Palau". Historiche Proas - Ancient Outriggers (in German). Retrieved January 18, 2016.