TY  - RPRT
TI  - Using diatom assemblages to assess urban stream conditions
AU  - C. E. Walker
AU  - Y. Pan
PY  - 2006
DO  - 10.1007/s10750-005-1613-3
UR  - https://pubs.usgs.gov/publication/70030421
ID  - 70030421
ER  -