Changes of the coniferous forest line in Finnish Lapland during 1983-2009 - Franke, Anna; Aatsinki, Pasi; Huhta, Esa; Hyppönen, Mikko; Juntunen, Vesa; Mikkola, Kari; Neuvonen, Seppo; Rautio, Pasi; Hallikainen, Ville (Luonnonvarakeskus (Luke), 2015)