Title Authors Year
Ranking of epiphytic lichen sensitivity to air pollution using survey data: A comparison of indicator scales

Van Dobben…

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
Closing the global N2O budget: a retrospective analysis 1500 - 1994

Kroeze, C…

1999
Concentration and distribution of extractable elements in a soil affected by tillage systems and fertilization

Lavado, R.…

1999
The resistance of the moss Polytrichum commune to acute exposure of simulated acid rain or ozone compared to two fern species: Spore germination

Bosley, A…

1999
Inventory of information sources on chemicals Persistent Organic Pollutants

UNEP,

 		1999
Protocol to abate acidification, eutrophication and ground-level ozone.

UNECE, .…

1999
Cronartium flaccidum fruitbody production on Melampyrum spp and some important alternate hosts to pine.

Kaitera, J…

1999
Atmospheric deposition of acidifying and eutrophicating substances in dune slacks.

Sival, F.P…

1999
Leaf injury characteristics of grassland species exposed to ozone in relation to soil moisture condition and vapour pressure deficit.

Bungener, P…

1999