TY  - RPRT
TI  - Monitoring ground-level air for trace analysis: methods and results.
AU  - J Bieringer
AU  - C Schlosser
PY  - 2004
DO  - 10.1007/s00216-004-2499-z
UR  - https://pubmed.ncbi.nlm.nih.gov/14758466/
ID  - 14758466
ER  -