Title Authors Year
Forest soil chemical changes between 1949-50 and 1987

Billett, M.…

1990
Successional changes in the soft-water macrophyte vegetation of (sub)atlantic, sandy, lowland regions during this century

Arts, G.H.P…

1990
Air pollution and tree-dwelling aphids. Population Dynamics of Forest Insects

McNeill, S…

1990
Calculated rates of soil acidification of intensively used grassland in the Netherlands.

Oenema, O…

1990
Environmental Health Criteria 86 Mercury- Environmental Aspects

WHO,

 		1989
Water and the Environment. Circular 7/89

Department…

1989
Results of the harmful effects of water pollutants to Daphnia magna in the 21 day Reproduction Test

Kühn, R ;…

1989
Unifying nutrient-chlorophyll relationships in lakes.

Prairie, Y.…

1989
Indigenous and cultivated plants as bioindicators

Weinstein,…

1989
Long-term change in the suitability of welsh streams for dippers Cinclus cinclus as a result of acidification and recovery: A modelling study.

Ormerod, S.…

1989