TY  - RPRT
TI  - Large decrease in the clear air transmission of the atmosphere 1.7 km above Los Angeles.
AU  - P W Hodge
PY  - 1971
DO  - 10.1038/229549a0
UR  - https://pubmed.ncbi.nlm.nih.gov/16059347/
ID  - 16059347
ER  -