@misc{breitbach_open_access_2005, 
author={Breitbach, G.},
title={Open Access in der HGF},
year={2005},
howpublished = {conference lecture (invited): Darmstadt (D);},
note = {Breitbach, G.: Open Access in der HGF. GSI Veranstaltung zu Open Access. Darmstadt (D), 2005.}}