| Title | Authors | Year | 
|---|---|---|
| The effect of external stress and disturbance factors on Calluna dominated heathland vegetation. | 
                               Berdowski,…  | 
                                                                                        1993 | 
| Critical loads for peat soils | 
                               Cresser, M.…  | 
                                                                                        1993 | 
| Zinc Phytotoxicity | 
                               Chaney, R.…  | 
                                                                                        1993 | 
| Distribution and decline of endangered herbaceous heathland species in relation to the chemical composition of the soil | 
                               Houdijk, A.…  | 
                                                                                        1993 | 
| Chromium toxicity in Salvia scarea I Effects of hexavalent chromium on seed germination and seedline development | 
                               Corraddi, M…  | 
                                                                                        1993 | 
| Effect of acid rain on pine needles as food for capercaillie in winter | 
                               Spidsx, T.K…  | 
                                                                                        1993 | 
| North Sea quality status report 1993 | 
                               OSPARCOM,…  | 
                                                                                        1993 | 
| Observations on the changes in nitrate concentrations in seven upland moorland catchments in north eastern Scotland | 
                               Black, K.E…  | 
                                                                                        1993 | 
| The Deposition of Atmospheric Ammonia and Its Effects on Plants | 
                               Pearson, J…  | 
                                                                                        1993 | 
| Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation | 
                               Faafeng, B…  | 
                                                                                        1993 |