Title Authors Year
The effects of acid deposition on nature conservation in Great Britain

Ormerod, S.…

1991
Zeigerwerte von Pflanzen in Mitteleuropa

Ellenberg,…

1991
Nitrogen Uptake and Allocation by Calluna-Vulgaris (L) Hull and Deschampsia-Flexuosa (L) Trin Exposed to 15NH3

Dueck, T.A…

1991
Influence of HN3 and (HN4)2 SO4 on heathland vegetation

Van der…

1991
Forestry and soil protection in the UK

Moffatt, A.…

1991
The Distribution and Breeding Site Characteristics of Newts in Cumbria, England.

Denton, J.S…

1991
Increases in soil acidity in north west Wales between 1957 and 1990

…

1991
Conservation of freshwater fish in the British Isles: the current status and biology of threatened species. Aquatic Conservation

Maitland, P…

1991
Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system.

Mansfield,…

1991
Environmental Health Criteria 125 Platinum

WHO,

 		1991