A multi-institute european project for providing improved and simpler traceability to the kelvin D. del Campo, J. Bojkovski, M. Dobre, E. Filipe, M. Kalemci, A. Merlone, J. Pearce, A. Peruzzi, F. Sparasci, R. Strnad et al. (2 more) Published online: 07 October 2013 DOI: 10.1051/metrology/201315006