Singheiser, Lorenz [P:(DE-Juel1)129795] ; Naumenko, Dmitry [P:(DE-Juel1)129766] ; Sebold, Doris [P:(DE-Juel1)129662] ; Vassen, Robert [P:(DE-Juel1)129670] ; Quadakkers, Willem J. [P:(DE-Juel1)129782]