TY  - RPRT
TI  - The internal comparator method.
AU  - X Lin
AU  - R Henkelmann
PY  - 2004
DO  - 10.1007/s00216-004-2557-6
UR  - https://pubmed.ncbi.nlm.nih.gov/15034706/
ID  - 15034706
ER  -