Feist, J.-H., Staebler, A., Ertl, W., Heinemann, B., & Speth, E. (1993). Large Scale Titanium Getter Pumps for the ASDEX-Upgrade Neutral Beam Injectors. In C. Ferro, M. Gasparotto, & H. Knoepfl (Eds.), Fusion Technology 1992: Proceedings of the 17th Symposium on Fusion Technology (pp. 262-266). Amsterdam: North-Holland.