@misc{TUW-238624, author = {Trachte, Adrian and Seiler-Thull, Daniel and Gl{\"u}ck, Tobias and Kemmetm{\"u}ller, Wolfgang and Kugi, Andreas and Pfeffer, Andreas}, title = {Verfahren zum Ermitteln eines F{\"u}llstands einer Hydrospeichereinrichtung}, year = {2015}, howpublished = {patent}, note = {submitted: 2013-10-23, granted: 2015-04-23} }