TY  - RPRT
TI  - Normalization and calculation of lanthanide element concentrations in environmental samples.
AU  - B Markert
AU  - H Piehler
AU  - H Lieth
AU  - A Sugimae
PY  - 1989
DO  - 10.1007/bf01211258
UR  - https://pubmed.ncbi.nlm.nih.gov/2798771/
ID  - 2798771
ER  -