| Title | Authors | Year |
|---|---|---|
| Observations on the changes in nitrate concentrations in seven upland moorland catchments in north eastern Scotland |
Black, K.E… |
1993 |
| Lichen Flora of Great Britain and Ireland |
Purvis, O.W… |
1992 |
| Effects of simulated nitrogen rich and acid rain on the nitrogen-fixing lichen Peltigera aphthosa (L.) Willd. |
Hallbdcken… |
1992 |
| Halogen emissions from coal combustion |
Sloss, L.L… |
1992 |
| The decrease of rich fen Bryophytes in the Netherlands. |
Kooijman, A… |
1992 |
| Effects of Ionising Radiation on Plants and Animals at levels implied by Current Radiation Protection Standards |
IAEA, |
1992 |
| Effects of a short ozone exposure given at different stages in the development of Plantago major L. |
Reiling, K… |
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 |
| Bryophytes and Lichens in a Changing Environment. |
Bates, J.W… |
1992 |