Habermann, M., and Schopf. 1988. Freilanduntersuchungen zu Flugaktivitat, Adultfrass und Bruterfolg von Scolytus intricatus (Ratz) (Col, Scolytidae) [Field studies on the flight activity, adult feeding and brood sucess of Scolytus intricatus] [English summary] . Journal of Applied Entomology 106:252-261.