1. Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätstr. 150 D-44780 Bochum Germany
2. Department of Chemistry University of Burgos Plaza Misael Bañuelos s/n E-09200 Burgos Spain
3. ICCRAM – International Research Center in Critical Raw Materials University of Burgos Plaza Misael Bañuelos s/n E-09001 Burgos Spain