Fahlvik N, Eko PM, Eko PM, Pettersson N 2005 Influence of precommercial thinning grade on branch diameter and crown ratio in Pinus sylvestris in southern Sweden Research article (Peer reviewed) DOI:10.1080/02827580510008266
Stern Marie, Ekö Per-Magnus, Albrektson Arne 2004 Growth and yield of hybrid larch (Larix eurolepis Henry) in south Sweden Research article (Peer reviewed)