Wagner, D., Stober, J., Kircher, M., Leuterer, F., Monaco, F., Münich, M., et al. (2017). Extension of the Multi-Frequency ECRH System at ASDEX Upgrade. Talk presented at 10th International Workshop "Strong Microwaves and Terahertz Waves: Sources and Applications". Nizhny Novgorod. 2017-07-17 - 2017-07-22.