APIS Bibliography

Title	Authors	Year
Ammonia concentrations at a site in southern Scotland from 2 yr of continuous measurements	Burkhardt,…	1998
Relationships between atmospheric nitrogen inputs and the vertical nitrogen and phosphorus concentration gradients in the lichen Cladonia portentosa	Hyvdrinen,…	1998
Effects of atmospheric NH3 on epiphytic lichens in the Netherlands: the pitfalls of biological monitoring.	Van Dobben…	1998
River Habitat Quality	Service,…	1998
Natural abundance of 15N in forests across a nitrogen deposition gradient	Emmett, B.A…	1998
Nitrogen deposition in Swiss forests and its possible relevance for leaf nutrient status, parasite attacks and soil acidification	Flückiger,…	1998
Early effects of acid mist on Sitka spruce planted on acid peat.	Sheppard, L…	1998
The role of different arbuscular mycorrhizal fungi in the growth of Calamagrostis villosa and Deschampsia flexuosa, in experiments with simulated acid rain	Vosatka, M…	1998
UNECE Critical Levels Workshop Proceedings	Guderian, R…	1998
The quality of shallow groundwaters in Northern Ireland	Robins, N.S…	1998