1. General Energy Research (ENE),
Laboratory for Bionenergy and Catalysis, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
2. CNR-IOM-OGG c/o ESRF, GILDA-CRG, BP 220, F38043 Grenoble Cedex, France
3. CNR - Institute of Crystallography, UOS Trieste, Strada Statale 14 -
km 163,5 Area Science Park I34149 Basovizza, Trieste Italy