A simple pre-stress estimating method of langevin transducers
F. Bo, L. Ting, T. Hemsel, in: Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium On, 2008, pp. 324–327.

A novel approach for high power ultrasonic linear motors
T. Hemsel, M. Mracek, J. Wallaschek, P. Vasiljev, in: Ultrasonics Symposium, 2004 IEEE, 2004, pp. 1161–1164.

Specification of Real-Time Properties for UML Models
S. Flake, W. Müller, in: Proceedings of HICSS-35, Big Island, HI, USA , 2002.

Agent-Based Modeling for Holonic Manufacturing Systems with Fuzzy Control
S. Flake, C. Geiger, G. Lehrenfeld, W. Müller, V. Paelke, in: Proceedings of NAFIPS’99, 18th International Conference of the North American Fuzzy Information Processing Society, IEEE, New York, NY, USA , 1999.

Visual Modeling and 3D-Representation with a Complete Visual Programming Language --- A Case Study in Manufacturing
C. Geiger, R. Hunstock, G. Lehrenfeld, W. Müller, J. Quintanilla, C. Tahedl, A. Weber, in: Proceedings of the 1996 IEEE Symposium on Visual Languages, Boulder, CO, USA, 1996.