TY  - JOUR
AU  - Heller-zeisler, S
AU  - Ondov, J
AU  - Zeisler, Rolf
C2  - Biological Trace Element Research
DA  - 1999-12-01 00:12:00
LA  - en
M1  - 71-72
PB  - Biological Trace Element Research
PY  - 1999
TI  - Collection and Characterization of a Bulk PM<sub>2.5</sub> Air Particulate Matter Material for Use in Reference Materials
ER  -