Hellwig, A.; Inden, G.; Palm, M.: The invariant reaction between α, α2 and γ in the Ti/1bAl system. Scripta Metallurgica et Materialia 27 (2), pp. 143 - 148 (1992)
Ceremony on 16 April with the Minister for Culture and Science of North Rhine-Westphalia, Ina Brandes, the Lord Mayor of Düsseldorf, Stephan Keller, and the President of the Max Planck Society, Patrick Cramer