| Title | Authors | Year |
|---|---|---|
| Concentration and distribution of extractable elements in a soil affected by tillage systems and fertilization |
Lavado, R.… |
1999 |
| Inventory of information sources on chemicals Persistent Organic Pollutants |
UNEP, |
1999 |
| Effect of vanadium on the growth of soybean seedlings |
Wang, J ;… |
1999 |
| The fate of mineral nitrogen in a fen with Sphagnum fallax Klinggr. and Carex rostrata Stokes (Massif-central, France) |
Francez, A.… |
1999 |
| Action for Scotland's Biodiversity |
Usher, (Eds… |
1999 |
| Atmospheric deposition of acidifying and eutrophicating substances in dune slacks. |
Sival, F.P… |
1999 |
| Mapping of ammonia pollution with epiphytic lichens in the Netherlands |
Van Herk, C… |
1999 |
| The Kyoto Protocol: A guide and assessment |
Grubb, M.;… |
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 |