Böhm: Forscher und Gelehrte/Schenk: Materie — Energie — Licht/Nagy: State Vector Spaces with Indefinite Metric in Quantum Field Theory/Buchdahl: The Concepts of Classical Thermodynamics/Skobel'tsyn: Soviet Researches on Luminescence/Bull: Fluctuations of Stationary and Non-Stationary Electron Currents/Rexer: Organische Halbleiter/Ward: High Vacuum Technology/Martens: Reactor Handbook/Kortüm: Lehrbuch der Elektrochemie/Schwentek: Mensch und Automat