@article {1137, title = {Assessing the chronic effects of atmospheric tetrachloroethylene (PER) on plants. Note 48}, journal = {Plant Research International}, year = {2000}, publisher = {Wageningen}, address = {Netherlands}, author = {Franzaring, J. and Van der Eerden, L.J.M. and Van Dijk, C.J. and Helsper J.P.F.G. and Pikaar P.J.J. and Nijhuis E.H. and Tonneijck A.E.G.} } @article {1444, title = {Growth responses to ozone in plant species from wetlands.}, journal = {Environmental and Experimental Botany}, volume = {44}, year = {2000}, pages = {39-48}, author = {Franzaring, J. and Tonneijck A.E.G. and Kooijman, A.W.M. and Dueck, T.A.} }