@misc{kocak_effects_of_1998, 
author={Kocak, M., Achar, D. R. G., Evans, G. M.},
title={Effects of nitrogen and strain age embrittlement on toughness of MMA welds: A Final Report on the Joint Research Project - GKSS Research Centre, Geesthacht, Germany, and Oerlikon Welding Ltd., Zurich, Switzerland},
year={1998},
howpublished = {GKSS report},
note = {Kocak, M.; Achar, D.; Evans, G.: Effects of nitrogen and strain age embrittlement on toughness of MMA welds: A Final Report on the Joint Research Project - GKSS Research Centre, Geesthacht, Germany, and Oerlikon Welding Ltd., Zurich, Switzerland. GKSS 98-E-50. 1998.}}