Papagiannopoulos, Aristeidis [P:(DE-HGF)0] ; Karayianni, Maria [P:(DE-HGF)0] ; Mountrichas, Grigoris [P:(DE-HGF)0] ; Pispas, Stergios [P:(DE-HGF)0] ; Radulescu, Aurel [P:(DE-Juel1)130905]