Suppression of MHD activity with limiter biasing in the HT-7 tokamakH.W. Lu, J.R. Luo, F.C. Zhong, X.J. Zha, L.Q. Hu and HT-7 TeamEur. Phys. J. D, 66 8 (2012) 213DOI: https://doi.org/10.1140/epjd/e2012-30283-1