1. 1
   Bivoltinism in Ips typographus in Norway and winter mortality in second generation = To generasjoner hos Ips typographus i Norge og vinter-mortalitet i 2. generasjon

   由 Austarå, Øystein
   出版 1977

   Ås [Norway] : Norsk institutt for skogforskning, 1977.

   p. [272]-281 : ill. ; 24 cm.

   主题: “...Ips typographus Norway....”
   

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2. 2
   Seasonal flight activity and attack pattern of Ips typographus in Norway under epidemic conditions = Svermeforløpet og angrepsmønsteret hos granbarkbillen Ips typographus i Norge u...

   由 Bakke, Alf
   出版 1977

   Ås [Norway] : Norsk institutt for skogforskning, 1977.

   p. [256]-268 : ill. ; 24 cm.

   主题: “...Ips typographus Norway....”
   

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3. 3
   Mass trapping of the spruce bark beetle Ips typographus : pheromone and trap technology = Massefangst av granbarkbillen Ips typographus : feromon- og felleteknologi

   由 Bakke, Alf
   出版 1983

   Ås [Norway] : Norsk institutt for skogforskning, 1983.

   35 p. : ill. ; 24 cm.

   主题: “...Spruce bark beetles Norway....”
   

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