TY  - RPRT
TI  - [The increase of biologically effective ultraviolet solar radiation due to a decrease of the ozone concentration in the free atmosphere (author's transl)].
AU  - R Schulze
PY  - 1974
DO  - 10.1007/bf01323097
UR  - https://pubmed.ncbi.nlm.nih.gov/4832049/
ID  - 4832049
ER  -