Grote, H., Bohmeyer, W., Reiner, H.-D., Fuchs, T., Kornejew, P., & Steinbrink, J. (1997). Comparison of chemical sputtering yields for different graphites at high ion flux densities. Journal of Nuclear Materials, 241-243, 1152-1155. doi:10.1016/S0022-3115(96)00690-3.