Ruess T, Avramidis KA, Gantenbein G, Ioannidis Z, Illy S, Jin J, Lutz F-C, Marek A, Ruess S, Rzesnicki T, et al. Automated Generation of High-Order Modes for Tests of Quasi-Optical Systems of Gyrotrons for W7-X Stellarator. In: GeMiC 2019 - 2019 German Microwave Conference. ; 2019. pp. 226-228.