TY - JOUR A1 - Pradel, Rita A1 - Steiger, Thomas T1 - COMARĀ² The international database for certified reference materials on the internet JF - Analytical and bioanalytical chemistry T2 - 9th International Symposium on Biological and Environmental Reference Materials (BERM-9) CY - Berlin, Germany DA - 2003-06-15 PY - 2003 SN - 1618-2642 SN - 1618-2650 VL - 378 IS - 5 SP - 1 EP - 2(?) PB - Springer CY - Berlin AN - OPUS4-2563 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -