| Title | Authors | Year |
|---|---|---|
| Decline of ectomycorrhizal fungi in Europe. |
Arnolds, E… |
1991 |
| Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system. |
Mansfield,… |
1991 |
| Environmental Health Criteria 125 Platinum |
WHO, |
1991 |
| Zeigerwerte von Pflanzen in Mitteleuropa |
Ellenberg,… |
1991 |
| Effects of ionising radiation on aquatic organisms |
National… |
1991 |
| Proceedings of the 2nd workshop on sources of variation in ecotoxicological tests with Daphnia magna |
Van der… |
1991 |
| Air pollution and agriculture |
Ashmore, M.… |
1991 |
| Concurrent exposure to SO2 and/or NO2 alters groweth and Yield responses of wheat and barley to low concentrations of O3. |
Adaros, G… |
1991 |
| A Field-Study of Fertilization and Embryonic Development in the Common Frog (Rana-Temporaria) with Particular Reference to Acidity and Temperature |
Beattie, R.… |
1991 |
| Nitrate in soil water |
Westling, O… |
1991 |