Fietz, S., Bergmann, A., Classen, I., Maraschek, M., Garcia-Munoz, M., Suttrop, W., et al. (2015). Influence of externally applied magnetic perturbations on neoclassical tearing modes at ASDEX Upgrade. Nuclear Fusion, 55: 013018. doi:10.1088/0029-5515/55/1/013018.