Safety factor on the axis of a tokamak during Ohmically heated sawtoothing discharges from a localized measurement of circular polarization of the Lii 6708 A(ring) line - Huang, L. K.; Finkenthal, M.; Wróblewski, D.; Moos, H. W.; West, W. P.; Thomas, D. M.; Thomas, M. P.; Yang, X. Z.; Phillips, P. E.; Wootton, A. J.; Bengtson, Roger D.; Boedo, J. A.; et al. (American Institute of Physics (AIP), 1990)
http://dx.doi.org/10.1063/1.859317
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