TY  - RPRT
TI  - Thin layer chromatography/densitometry with transferable calibration factors.
AU  - H Bethke
AU  - R W Frei
PY  - 1976
DO  - 10.1021/ac60365a056
UR  - https://pubmed.ncbi.nlm.nih.gov/1244768/
ID  - 1244768
ER  -