Title Authors Year
Manual on methodologies and criteria for mapping critical levels/loads and geographical areas where they are exceeded

UNECE,

 		1996
Quantitative relationships of invertebrates to pH in Norwegian river systems.

Larsen, J…

1996
Responses of four Sphagnum species to acute ozone fumigation

Potter, L…

1996
Natural and anthropogenic enrichments of As, Cu, Pb and Zn in ombrotrophic versus minerotrophic peat bog profiles

Shotyk, W…

1996
Re-mapping epiphytic lichen biodiversity in The Netherlands: Effects of decreasing SO2 and increasing NH3

Dobben, Van…

1996
Empirical nitrogen critical loads for natural and semi-natural ecosystems

Bobbink, R…

1996
Critical levels of air pollutants for the United Kingdom

UKCLAG,

 		1996
Potential effects of rising tropospheric concentrations of CO2 and O-3 on green-algal lichens

Balaguer, M…

1996
The use of lichens for estimating ammonia air pollution in Western France.

Lallemant,…

1996
Red Data Books of Britain and Ireland: lichens

Church, J.M…

1996