Reich, M., Wolfrum, E., Schweinzer, J., Ehmler, H., Horton, L. D., Neuhauser, J., et al. (2004). Lithium beam charge exchange diagnostic for edge ion temperature measurements at the ASDEX Upgrade tokamak. Plasma Physics and Controlled Fusion, 46, 797-808. doi:10.1088/0741-3335/46/5/005.