@article{2216015a2d2946678d7dc41dbbb1d551,
title = "Physiological effects of a long term exposure to low concentrations of NH3, NO2 and SO2 on Douglas fir (Pseudotsuga menziesii).",
keywords = "Air pollution, ammonia, chlorophyll content, chlorophyll fluorescence, CO2 assimilation, Douglas fir seedlings, nitrogen dioxide, Pseudotsuga menziesii, stomatal conductance, sulphur dioxide",
author = "{van Hove}, L.W.A. and M.E. Bossen and M.G.J. Mensink and {van Kooten}, O.",
year = "1992",
doi = "10.1111/j.1399-3054.1992.tb02170.x",
language = "English",
volume = "86",
pages = "559--567",
journal = "Physiologia Plantarum",
issn = "0031-9317",
publisher = "Wiley",
}