1. P. Betsch Computational Methods for Flexible Multibody Dynamics. Habilitationsschrift, Lehrstuhl für Technische Mechanik, Universität Kaiserslautern, 2002.
2. P. Betsch The discrete null space method for the energy consistent integration of constrained mechanical systems. Part I: Holonomic constraints. Submitted for publication.
3. Constrained integration of rigid body dynamics;Betsch;Comput. Methods Appl. Mech. Eng.,2001
4. Conservation properties of a time FE method. Part III: Mechanical systems with holonomic constraints;Betsch;Int. J. Numer. Methods Eng.,2002
5. A DAE approach to flexible multibody dynamics;Betsch;Multibody System Dynamics,2002