The authors

Rob Vincken executes the techniques, Wim Heijnen is one of the attackers and Al Wandler is the man behind the camera.

Rob  has his own dojo in Maastricht, Al  in Posterholt en Wim in Hoensbroek.

Other people who took part in the realization of this CD-ROM are Franca Warmenhoven (attacker), Marij de Veen (photography) and Leon van der Sluys (translation).