Reference

K. R. Albert, H. Ro-Poulsen, L. Bredahl, K. B. Haakanssen, T. N. Mikkelson (2005): Effects of Reducing the Ambient UV-B Radiation in the High Arctic on Salix arctica and Vaccinium uliginosum. – Phyton, Annales Rei Botanicae, Horn – 45_4: 41 - 49.