NURBS tutorials?

Hi.
Do you guys know any good NURBS tutorials for blender3d?

-Flaringo-

try these
http://www.vrotvrot.com/xoom/tutorials/Dolphin/UnderWater.html
or
http://download.blender.org/documentation/oldsite/oldsite.blender3d.org/117_Blender%20tutorial%20Fun%20with%20nurbs.html

I have allready tried those, but i am looking for some new

-Flaringo-

well there is this tut wich talks about using nurbs and dupliframs:
http://www.blender.org/modules/documentation/htmlI/x10039.html