Oberkofler, M., Alegre, D., Aumayr, F., Brezinsek, S., Craven, R., Dittmar, T., et al. (2015). Nitrogen retention mechanisms in tokamaks with metallic plasma-facing materials. Talk presented at 15th International Conference on Plasma-Facing Materials and Components for Fusion Applications (PFMC-15). Aix-en-Provence. 2015-05-18 - 2015-05-22.