@book{
international1989iaea,
title={Impurity Control in Toroidal Devices
Proceedings of a Technical Committee meeting, Naka-gun, Japan, 13-15 February 1989},
series={TECDOC Series},
number={536},
year={1989},
url={http://www.dgdingfa.net/publications/792/impurity-control-in-toroidal-devices-proceedings-of-a-technical-committee-meeting-naka-gun-japan-13-15-february-1989},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}