Wannebo-Nilsen, K./ J. W. Bjerke/ P. S. A. Beck/ H. Tømmervik 2010: Epiphytic macrolichens in spruce plantations and native birch forests along a coast-inland gradient in North Norway. - Boreal Environment Research15(1): 43-57. [RLL List # 230 / Rec.# 34353]