1. Notes on the larva of Anogmus hohenheimensis Ratz. (Hym., Pteromalidae), Torymus azureus Boh. and T. caudatus Boh. (Hym., Torymidae);Annila;Ann. Ent. Fenn.,1974
2. Über den tierischen Abbau von Fichtenzapfen;Arend;Z. ang. Ent.,1967
3. Insects reared from spruce cones in Northern Norway 1951;Bakke;Norsk ent. Tidsskr.,1955
4. Two little known species of Chalcid-flies from spruce cones in Norway (Pteromalidae, Chalcidoidea);Bakke;Norsk ent. Tidsskr.,1956
5. Bakke , A. 1963 Studies on the Spruce-Cone Insects Laspeyresia strobilella (L.) (Lepidoptera: Tortricidae), Kaltenbachiola strobi (Winn.) (Diptera: Itonididae) and their Parasites (Hymenoptera) in Norway 1 151