Liora, Natalia [P:(DE-HGF)0] ; Poupkou, Anastasia [P:(DE-HGF)0] ; Giannaros, Theodore M. [P:(DE-HGF)0] ; Kakosimos, Konstantinos E. [P:(DE-HGF)0] ; Stein, Olaf [P:(DE-Juel1)3709] ; Melas, Dimitrios [P:(DE-HGF)0]