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Lua i Stíl Chicago (17ú heag.)Lindberg, Mikael. The Resistance of Picea Abies Bark to Heterobasidion Annosum: Role of Stress, Structural Defence and Biochemical Resistance. Uppsala: Swedish University of Agricultural Sciences, Department of Forest Mycology and Pathology, 1991.
Lua MLA (8ú heag.)Lindberg, Mikael. The Resistance of Picea Abies Bark to Heterobasidion Annosum: Role of Stress, Structural Defence and Biochemical Resistance. Swedish University of Agricultural Sciences, Department of Forest Mycology and Pathology, 1991.