TY - CONF A1 - Pradel, Rita A1 - Steiger, Thomas T1 - COMAR2 The International Database for Certified Reference Materials on the Internet T2 - BERM 9 - 9th International Symposium on Biological and Environmental Reference Materials T2 - BERM 9 - 9th International Symposium on Biological and Environmental Reference Materials CY - Berlin, Germany DA - 2003-06-15 PY - 2003 AN - OPUS4-4763 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -