Astakhov, O. [P:(DE-Juel1)130212] ; Agbo, S. N. [P:(DE-Juel1)166079] ; Welter, K. [P:(DE-Juel1)167359] ; Smirnov, V. [P:(DE-Juel1)130297] ; Rau, Uwe [P:(DE-Juel1)143905] ; Merdzhanova, T. [P:(DE-Juel1)130268]