TY - Generic T1 - Seasonal variations in acidic pollutant inputs and their effects on the chemistry of stemflow, bark and epiphyte tissues in three oak woodlands in N.W. Britain Y1 - 1991 A1 - Farmer, A.M. A1 - Bell, J.N.B. A1 - Bates, J.W. JF - New Phytologist VL - 118 ER -