Interactive effects of ozone and Pow UV‐B radiation on antioxidants in spruce (Picea abies) and pine (Pinus sylvestris) needles. - Baumbusch,L..O..; Eiblmeier,M..; Schnitzler,J..P..; Heller,W..; Sandermann,H..; Polle,A.. (Physiologia Plantarum, 1998)