Mathematik

I am associate editor of the following journals:

• Journal of Approximation Theory (JAT)
• Computer Aided Geometric Design (CAGD)

I have guest-edited the following volumes:

• Geometric Modelling and Differential Geometry,
  Special Issue of CAGD, Vol. 22, Issue 7 (2005). 
• Subdivision Algorithms,
  Special Issue of CAGD, Vol. 18, Issue 5 (2001).