Metrological Approach for the Quantification of Metalloproteins (EMRP Project HLT05)Claudia Swart, Sabine Zakel, Claudia Frank, Paola Fisicaro and Heidi Goenaga-InfanteEPJ Web of Conferences, 77 (2014) 00007DOI: https://doi.org/10.1051/epjconf/20147700007