Houben, A., Engels, J., Gao, L., Scheuer, J., Rasinski, M., Kreter, A., et al. (2019). Hydrogen permeation and retention in fusion materials and the development of tritium permeation barriers. Talk presented at 28th International Toki Conference on Plasma and Fusion Research. Ceratopia Toki, Toki-city, Gifu. 2019-11-05 - 2019-11-08.