Zhang, Chao [P:(DE-Juel1)136680] ; Merdzhanova, Tsvetelina [P:(DE-Juel1)130268] ; Meier, Matthias [P:(DE-Juel1)130830] ; Sommer, Nicolas [P:(DE-Juel1)145392] ; Astakhov, Oleksandr [P:(DE-Juel1)130212]