Title Authors Year
Distribution in Portugal of some pollutants in the lichen Parmelia sulcata

Freitas, M…

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
The fate of NH4NO3 added to Sphagnum magellanicum carpets at five European mire sites

Williams, B…

1999
Assessment programme to fulfil the commitments of the Nuclear Safety Commission - Proceedings of the Second International Symposium on Ionising Radiation and the Environment

P.M.,…

1999
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
Protocol to abate acidification, eutrophication and ground-level ozone.

UNECE, .…

1999
Methane release from peat soils: effects of Sphagnum and Juncus.

Roura-Carol…

1999
Tolerance of tropical common bean genotypes to manganese toxicity: performance under different growing conditions

González, A…

1999