Browsing NIBIO Brage by Author "Roll-Hansen, Helga"
Now showing items 1-1 of 1
-
On diseases and pathogens on forest trees in Norway 1966-1975. Part II: Abnormal formations. Physiogenic diseases. Diseases due to unknown or complex causes
Roll-Hansen, Finn; Horntvedt, Richard; Roll-Hansen, Helga (Meddelelser fra Skogforsk;47.15, Report, 1997)