Title Authors Year
Effects of atmospheric NH3 on epiphytic lichens in the Netherlands: the pitfalls of biological monitoring.

Van Dobben…

1998
Ammonia concentrations at a site in southern Scotland from 2 yr of continuous measurements

Burkhardt,…

1998
Early effects of acid mist on Sitka spruce planted on acid peat.

Sheppard, L…

1998
Fluoride. In: Recognition of Air Pollutant Injury to Vegetation: A Pictorial Atlas. 2nd Edition

Weinstein,…

1998
The effects of air-borne nitrogen pollutants on species diversity in natural and semi-natural European vegetation

Bobbink, R…

1998
UNECE Critical Levels Workshop Proceedings

Guderian, R…

1998
Effects of simulated N deposition on understorey vegetation of a boreal coniferous forest.

Nordin, A…

1998
Nitrogen deposition and ectomycorhizas

Wallenda, T…

1998
Environmental Health Criteria 200 Copper

WHO,

 		1998
Regional mass budgets of oxidized and reduced nitrogen and their relative contribution to the N inputs of sensitive ecosystems

Fowler, D…

1998