| Title | Authors | Year | 
|---|---|---|
| Effects of Nitrogen-Oxides on Nitrate Assimilation in Bryophytes | 
                               Morgan, S.M…  | 
                                                                                        1992 | 
| Biological recording of changes in British wildlife | 
                               Adams, K.J…  | 
                                                                                        1992 | 
| Effects of acid precipitation, fertilisation and liming on the ground vegetation in coniferous forests of southern Germany | 
                               …  | 
                                                                                        1992 | 
| Lichen Flora of Great Britain and Ireland | 
                               Purvis, O.W…  | 
                                                                                        1992 | 
| Growth limiting nutrients in Sphagnum dominated bogs subject to low and high atmospheric Nitrogen supply | 
                               Aerts, R.;…  | 
                                                                                        1992 | 
| nitrogen cycle in Lough Neagh, N. Ireland, 1975 to 1987 | 
                               Gibson, C.E…  | 
                                                                                        1992 | 
| The Effects of Low Ph and Aluminum on Breeding Success in the Frog Rana-Temporaria | 
                               Beattie, R.…  | 
                                                                                        1992 | 
| Changes in the Duch bryophyte flora and air pollution | 
                               Greven, H.C…  | 
                                                                                        1992 | 
| Acid rain since 1985 - times are changing | 
                               Brydges, T.…  | 
                                                                                        1991 | 
| Single and Interactive Effects of Low Levels of O3, SO2 and NO2 on the Growth and Yield of Spring Rape. | 
                               Adaros, G…  | 
                                                                                        1991 |