%0 Generic %D 2000 %T Assessing the chronic effects of atmospheric tetrachloroethylene (PER) on plants. Note 48 %A Franzaring, J. %A Van der Eerden, L.J.M. %A Van Dijk, C.J. %A Helsper J.P.F.G. %A Pikaar P.J.J. %A Nijhuis E.H. %A Tonneijck A.E.G. %B Plant Research International %I Wageningen %C Netherlands %F critical load level reference