Nowak, I.:
Bounding indefinite quadratic forms over a simplex using Bezier methods and semidefinite programming. Erscheint in in Global Optimization.

Nowak, I.:
Numerical finiteness results for minimal surfaces in three-dimensional space forms.
Experimental Mathematics 6 (1997), No. 4, 301 - 315.

Nowak, I.:
A branch-and-bound algorithm for computing the global minimum of polynomials by Bernstein-Bezier patches on simplices. Technical Report, BTU Cottbus, M-09, 1996.