TY - Generic T1 - Relationship between epiphytic lichens, trace elements and gaseous atmospheric pollutants Y1 - 2001 A1 - Van Dobben, H.J. A1 - Wolterbeek, H.T. A1 - Wamelink, G.W.W. A1 - Ter Braak, C.J.F. JF - Environmental Pollution VL - 112 ER -