@misc{brocks_the_second_1995, 
author={Brocks, W., Schmitt, W.},
title={The second parameter in J-R curves: Constraint or triaxiality?},
year={1995},
howpublished = {conference lecture: Dallas, TX (USA);},
note = {Brocks, W.; Schmitt, W.: The second parameter in J-R curves: Constraint or triaxiality?. In: Kirk, M.; Bakker, A. (Ed.): Constraint Effects in Fracture: Theory and Applications. Dallas, TX (USA). 1995. 209.}}