@inproceedingsKimotho_Sextro_Hemsel_2017, title=Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing, DOI=10.1109/TR.2017.2710260, booktitle=IEEE Transactions on Reliability, author=Kimotho, James Kuria and Sextro, Walter and Hemsel, Tobias, year=2017, pages=1–10 
LibreCat: /record/9978
DOI: 10.1109/TR.2017.2710260

@inproceedingsIsobe_Ageba_Maeda_Bornmann_Hemsel_Morita_2012, title=Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal method, volume=1433, DOI=10.1063/1.3703251, number=1, booktitle=AIP Conference Proceedings, publisher=AIP, author=Isobe, Gaku and Ageba, Ryo and Maeda, Takafumi and Bornmann, Peter and Hemsel, Tobias and Morita, Takeshi, editor=B. J. Linde, Bogumil and Paczkowski, Jacek and Ponikwicki, NikodemEditors, year=2012, pages=569–572 
LibreCat: /record/9785
DOI: 10.1063/1.3703251

@inproceedingsBo_Ting_Hemsel_2008, title=A simple pre-stress estimating method of langevin transducers, DOI=10.1109/SPAWDA.2008.4775801, booktitle=Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium on, author=Bo, Fu and Ting, Li and Hemsel, Tobias, year=2008, pages=324–327 
LibreCat: /record/9568
DOI: 10.1109/SPAWDA.2008.4775801