TY  - RPRT
TI  - Environmental protection and its trends in developing countries.
AU  - V Bencko
AU  - V Serý
AU  - W Sixl
AU  - E Marth
PY  - 1989
UR  - https://pubmed.ncbi.nlm.nih.gov/2634070/
ID  - 2634070
ER  -