@unpublished{TUW-198738, author = {Sterba, Johannes H. and Steinhauser, Georg and Grass, F.}, title = {Illegal use of arsenic in fireworks}, year = {2011}, note = {poster presentation: 13th Int. Conf. ''Modern Trends in Activation Analysis'' (MTAA13), Texas, USA; 2011-03-13 -- 2011-03-18} }