%0 conference paper %@ %A Tier, M.,Kieckow, F.,dos Santos, J.,Strohaecker, T.,Bell, T. %D 2008 %J Surface Modification Technologies, 21st International Conference on Surface Modification Technologies, SMT 21 %N %P 23-30 %T Evaluation of Toughness in Nitrided Layers by Indentation Method %U %X