Title Authors Year
Freshwater sponges (Porifera: Spongillidae) of Norway: Distribution and ecology.

Økland, K.A…

1996
Empirical nitrogen critical loads for natural and semi-natural ecosystems

Bobbink, R…

1996
The use of lichens for estimating ammonia air pollution in Western France.

Lallemant,…

1996
Acid deposition and soils: a perspective for nature conservation

Bareham, S.…

1996
Evidence that plant varieties respond differently to NO2 pollution as indicated by resistance to insect herbivores

Masters, G.…

1996
Current and historical relationships between the tissue N content of a snowbed bryophyte and nitrogenous air pollution.

Woolgrove,…

1996
Epiphytic bryophytes in Naha city (subtropical urban area in Okinawa Island, southern Japan), with special references to air pollution

Inui, T.;…

1996
Adverse health effects due to soil water acidification: a Swedish research programme

Oskarsson,…

1996
Manual on methodologies and criteria for mapping critical levels/loads and geographical areas where they are exceeded

UNECE,

 		1996
Responses of four Sphagnum species to acute ozone fumigation

Potter, L…

1996