Particle Accelerator Conference 2014, Dresden, Germany ( 2014 http://www.iae.uni-rostock.de/typo3/#_msocom_1 ). F. Reimann; U. van Rienen, P. Michel, U. Lehnert: A dielectrically lined rectangular waveguide as
https://www.iae.uni-rostock.de/en/reimann/