O. Friesen, M. A. Pasha, M. Schwengelbeck, L. Claes, E. Baumhögger, and B. Henning, “Untersuchung piezoelektrischer Materialeigenschaften unter hydrostatischer Last,” in Fortschritte der Akustik - DAGA 2024, Hannover, 2024, pp. 1117–1120.

K. Koch, O. Friesen, and L. Claes, Randomised material parameter impedance dataset of piezoelectric rings. zenodo, 2024.

H. Zeipert, C. von Germeten, O. Friesen, L. Claes, S. Johannesmann, and B. Henning, “Investigation of change in dispersive behaviour during adhesive curing in multi-layered structures,” in Fortschritte der Akustik - DAGA 2023, Hamburg, 2023, pp. 819–822.

C. Scheidemann, T. Hemsel, O. Friesen, L. Claes, and W. Sextro, “Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics,” presented at the 7th International Conference on Advanced Electromaterials (ICAE 2023), Jeju, Korea, 2023.

C. Scheidemann, T. Hemsel, O. Friesen, L. Claes, and W. Sextro, “Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics,” presented at the International Conference on Functional Materials &; Devices 2023 (ICFMD 2023), Incheon, Korea, 2023.

O. Friesen, L. Claes, N. Feldmann, and B. Henning, Estimation of piezoelectric material parameters of ring-shaped specimens. International Workshop on Piezoelectric Materials and Applications in Actuators (IWPMA), 2022.