Computing the Stratification of Actions of Compact Lie Groups 9th Rhine Workshop on Computer Algebra, Nijmegen, 25. - 26.03.2004
	Computing Optimal Descriptions of Orbit Spaces and Strata of Compact Lie Groups Jahrestagung GAMM, Dresden, 22. - 26.03.2004
	Über konstruktive Invariantentheorie und Stratifizierung von Quotienten Computeralgebra Tagung in Kassel 2003, 15. - 17.05 2003
	Computing the Stratification of Actions of Compact Lie Groups Computer Algebra in Scientific Computing (CASC), Passau, 22. - 27.09.2003
	Über konstruktive Invariantentheorie und Stratifizierung von Quotienten Computeralgebra Tagung in Kassel 2003, 15. - 17.05 2003
	Computing stratifications of finite group-actions and an application to shape memory alloys Jahrestagung GAMM, Padova, 24. - 29.03.2003
	Moduli spaces of low Dimension for semi Brieskorn-Pham Singularities w.r.t. right Equivalence. Computer Algebra in Scientific Computing (CASC), Big Yalta (Crimea), 22. - 27.09.2002
	Algorithms for the computation of moduli spaces for semiquasihomogeneous singularities 8th Rhine Workshop on Computer Algebra, Mannheim, 21. - 22.03.2002
	Computing Stratifications of Quotients of Finite Groups and an Application to Shape Memory Alloys Computer Algebra in Scientific Computing (CASC), Konstanz, 22. - 26.09.2001
	Computing the Intersection of Invariant Rings 6th Rhine Workshop on Computer Algebra, St. Augustin, 31.03. - 3.04.1998