| Title | Authors | Year |
|---|---|---|
| Mapping of ammonia pollution with epiphytic lichens in the Netherlands |
Van Herk, C… |
1999 |
| Undergrowth as a biomonitor for deposition of N and acidity in pine forest. |
Van Dobben… |
1999 |
| Distribution in Portugal of some pollutants in the lichen Parmelia sulcata |
Freitas, M… |
1999 |
| Environmental chemistry: End of acid reign? |
Jenkins, A… |
1999 |
| Changes in distribution and abundance of submerged macrophytes in the Inner Bay at Long Point, Lake Erie: Implications for foraging waterfowl |
Knapton, R.… |
1999 |
| Closing the global N2O budget: a retrospective analysis 1500 - 1994 |
Kroeze, C… |
1999 |
| National Monitoring Programme - Survey of the Quality of UK Coastal Waters |
Group,… |
1998 |
| River Habitat Quality |
Service,… |
1998 |
| Nitrogen and drought effects on ectomycorrhizae of Norway spruce [Picea abries L. (Karst.)]. |
Nilsen, P… |
1998 |
| Air pollution fades the plumage of the Great Tit |
Eeva, T.; E… |
1998 |