A simple Key to the Northern European Species of Terebellomorph Polychaeta. By. Torleif Holthe. 1975. Mollusca, Prosobranchia. Forgjellesnegler nordiske marine arter. By Jon-Arne Sneli. 1975
Fauchald, Kristian. 1976. [Book review] "A simple Key to the Northern European Species of Terebellomorph Polychaeta. By. Torleif Holthe. 1975. Mollusca, Prosobranchia. Forgjellesnegler nordiske marine arter. By Jon-Arne Sneli. 1975." The Quarterly Review of Biology, 51, (1), 146–147.
