Koestel, J. [P:(DE-Juel1)VDB109775] ; Kasteel, R. [P:(DE-Juel1)VDB724] ; Kemna, A. [P:(DE-HGF)0] ; Esser, O. [P:(DE-Juel1)129450] ; Javaux, M. [P:(DE-Juel1)129477] ; Binley, A. [P:(DE-HGF)0] ; Vereecken, H. [P:(DE-Juel1)129549]