- Hallberg, E. 1982a. Sensory organs in Ips typographus (Insecta: Coleoptera). Fine structure of antennal sensilla. Protoplasma 111:206-214.
- Hallberg, E. 1982b. Sensory organs in Ips typographus (Insecta: Coleoptera). Fine structure the sensilla of the maxillary and labial palps. Acta Zoologica 63(4):191-198.
- Hallberg, E. 1984. The spermathecal complex in Ips typographus (L): differentiation of the spermathecal gland related to age and reproductive state . Journal of Insect Physiology 30:197-202.
- Hallberg, E. 1993. Fine structure of the hindgut of Ips typographus (Coleoptera: Scolytidae) . Entomología Generalis 18:25-36.