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Den danske rødliste, Institut for Bioscience, AU. Link:
bios.au.dk...Grimm, R., 1973. Zum Energieumsatz phytophager Insekten im Buchenwal. I. Oecologia (Berl.). 11, 187-262.
Hansen, V., 1965. Biller, XXI, Snudebiller, Larverne ved Sv. G. Larsson. G.E.C. Gads Forlag København.
Nielsen, B.O., 1966. Studies on the fauna of beech foliage. 1. Contributions to the biology of the early stages of the beech weevil. (Rhynchaenus (Orchestes) fagi L.) (Coleoptera, Curculionidae). Natura Jutlandica, 12, 162-181.
Nielsen. B.O., 1968. Studies on the fauna of beech foliage. 2. Observations on the mortality and mortality factors of the beech weevil (Rhynchaenus (Orchestes) fagi L.) (Coleoptera, Curculionidae). Natura Jutlandica, 14, 99-125.
Nielsen, B.O., 1970. Studies on the fauna of beech foliage. 3. Observations on the hibernation of the beech weevil (Rhrynchaenus fagi L.) in Denmark, Entomologica Scandinavica, 1, 223-226.
Nielsen. B.O., 1974. The phenology of beech canopy insects in Denmark. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening, 137, 95-124.
Phillipson, J. & Thompson, D.J., 1983. Phenology and intensity of phyllophage attack on Fagus sylvatica in Wytham Woods, Oxford. Ecological Entomology. 8, 315-330.