Yamada, H., Harris, J. H., Dinklage, A., Ascasibar, E., Sano, F., Okamura, S., Stroth, U., Kus, A., Talmadge, J., Murakami,
S., Yokoyama, M., Beidler, C. D., Tribaldos, V., & Watanabe, K. Y. (2004). Study
on energy confinement time of net-current free toroidal plasmas based on extended international stellarator database. In P.,
Norreys, & H., Hutchinson (Eds.), 31st EPS Conference on
Plasma Physics. Geneva: European Physical Society.