If anyone has access to JSTOR or "Arctic and Alpine Research" (my access is only since 2003), could you send me this paper? It is rather obscure. Thanks...
Ovhed, M. & Holmgren, B. (1995) 'Spectral Quality and Absorption of Solar Radiation in a Mountain Birch Forest, Abisko, Sweden', Arctic and Alpine Research, 27 (4), pp. 380-388.