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APIS Bibliography
APIS Bibliography
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Roelofs, J.G.M.
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Roelofs JGM
,
Kempers AJ
,
Houdijk ALFM
,
Jansen J
.
The effects of air-borne ammonium sulphate on Pinus nigra in the Netherlands
. Plant Soil. 1985 ;42:372–377.
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Journal Article
Bobbink R
,
Hornung M
,
Roelofs JGM
.
The effects of air-borne nitrogen pollutants on species diversity in natural and semi-natural European vegetation
. Journal of Ecology. 1998 ;86:717-738.
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van Dijk HFG
,
Roelofs JGM
.
Effects of excessive ammonium deposition on the nutritional status and condition of pine needles
. Physiologia Plantarum. 1988 ;73:494-501.
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Report
Bobbink R
,
Hornung M
,
Roelofs JGM
.
Empirical nitrogen critical loads for natural and semi-natural ecosystems
. Berlin: Umweltbundesamt; 1996 pp. 71-96. .
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Bobbink R
,
Roelofs JGM
.
Empirical nitrogen critical loads: update since Lokeberg (1992)
. (
Hornung M
,
Sutton MA
,
Wilson RB
). Bush: Institute of Terrestrial Ecology; 1995 pp. 9-19.
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