TY  - RPRT
TI  - COMAR2--the internet database for certified reference materials.
AU  - Thomas Steiger
AU  - Rita Pradel
PY  - 2003
DO  - 10.1007/s00216-003-2281-7
UR  - https://pubmed.ncbi.nlm.nih.gov/14598007/
ID  - 14598007
ER  -