Pestplanten tromsøsvineblom Jacobaea alpina × subalpina i Norge - opphav og status. / The invasive taxon Jacobaea alpina × subalpina in Norway - origin and status.

Alm, T., Deschamps, A. M., Often, A., (2016). Blyttia 74(2), 109-117. Norsk Botanisk Forening, Oslo, Norway. Norwegian language