Lauber, P., Classen, I. G. J., Curran, D., Igochine, V., Geiger, B., Da Graca, S., et al. (2012). NBI-driven Alfvénic modes at ASDEX Upgrade. Nuclear Fusion, 52: 094007 (8pp). doi:10.1088/0029-5515/52/9/094007.