Authors: Witzell, J

Citation: J. Witzell, Formation and growth of stem cankers caused by Gremmeniella abietina on young Pinus contorta, FOREST PATH, 31(2), 2001, pp. 115-127

Authors: Witzell, J Karlman, M

Citation: J. Witzell et M. Karlman, Importance of site type and tree species on disease incidence of Gremmeniella abietina in areas with a harsh climate in northern Sweden, SC J FOR R, 15(2), 2000, pp. 202-209