Title Authors Year
Forest soil chemical changes between 1949-50 and 1987

Billett, M.…

1990
Seasonal changes in amino acids, protein and total nitrogen in needles of fertilised Scots pine trees

Näsholm, T…

1990
Cation-exchange properties and adaptation to soil acidity in bryophytes

Buscher, P…

1990
Alger, lavar och Garrupprattning hos unggranar langs en kvavegradient Sverige-Holland

Garansson,…

1990
A regression model for nitrate leaching in Northern Ireland.

Smith, R.V…

1989
Effects of N-emissions on nutrient status and vitality of Pinus sylvestris near a hen house.

…

1989
Acute toxicity of six metals to the rotifer Brachionus calyciflorus, with comparisons to other freshwater organisms

Couillard,…

1989
A global assessment of natural sources of atmospheric trace metals

Nriagu, J.O…

1989
Effects of ammonia emission on epiphytic lichen vegetation

DeBakker, A…

1989
Environmental Health Criteria 85 Lead- Environmental Aspects

WHO,

 		1989