Title Authors Year
Statutory Instrument (1989): The Sludge (Use in Agriculture) Regulations

HMSO,

 		1989
Effects of ammonia emission on epiphytic lichen vegetation

DeBakker, A…

1989
Simulation of the long-term soil response to acid deposition in various buffer ranges

Vries, W.;…

1989
Lichen Recolonization in London under Conditions of Rapidly Falling Sulfur-Dioxide Levels, and the Concept of Zone Skipping.

Hawksworth…

1989
The acidification of Scottish lochs

Battarbee,…

1989
Condition of Scots Pine fine roots and mycorrhiza after fungicide application and low-level ozone exposure in a 2-year field experiment

Manninen, A…

1988
Understanding the Pollution Sensitivity of Lichens

Richardson…

1988
Environmental Health Criteria 81 Vanadium

WHO,

 		1988
Modelled historical concentrations and depositions of ammonia and ammonium in Europe

Asman, W.A.…

1988
Urban distribution of Rhytisma acerinum (Pers.) Fries (tar spot) on sycamore

Leith, I.D…

1988