@article{167607, author = {Andreae, H.}, url = {http://digitallibrary.un.org/record/167607}, title = {Ecological impacts of airborne heavy metals pollution : summary of a draft technical report /}, publisher = {UN,}, recid = {167607}, pages = {4 p.}, address = {Geneva :. 1993-05-06}, year = {1993}, month = {May}, }