Symbolic parametrization of pipe and canal surfaces. - Günter Landsmann; Josef Schicho; Franz Winkler 001; Erik Hillgarter (ISSAC, 2000)

The Parametrization of Canal Surfaces and the Decomposition of Polynomials into a Sum of Two Squares. - Günter Landsmann; Josef Schicho; Franz Winkler 001 (J. Symb. Comput., 2001)

A Topological Criterion for Polynomiality. - Günter Landsmann; Peter Mayr 001; Josef Schicho (Algorithmic Algebra and Logic, 2005)

Computation of Dimension in Filtered Free Modules by Gröbner Reduction. - Christoph Fürst; Günter Landsmann (ISSAC, 2015)