APIS Bibliography

Title	Authors	Year
Distribution in Portugal of some pollutants in the lichen Parmelia sulcata	Freitas, M…	1999
Environmental chemistry: End of acid reign?	Jenkins, A…	1999
Undergrowth as a biomonitor for deposition of N and acidity in pine forest.	Van Dobben…	1999
Closing the global N2O budget: a retrospective analysis 1500 - 1994	Kroeze, C…	1999
The effect of increased deposition of atmospheric N on Cv in upland Britain.	Carroll, J.…	1999
Changes in distribution and abundance of submerged macrophytes in the Inner Bay at Long Point, Lake Erie: Implications for foraging waterfowl	Knapton, R.…	1999
Concentration and distribution of extractable elements in a soil affected by tillage systems and fertilization	Lavado, R.…	1999
Protocol to abate acidification, eutrophication and ground-level ozone.	UNECE, .…	1999
Impact of heavy metals on denitrification in surface wetland sediments receiving wastewater	Sakadevan,…	1999
Ellenberg's indicator values for British plants: ECOFACT volume 2 technical annex.	Hill, M.O…	1999