Acta Zoologica Fennica

The evolution of the polar bear, Ursus maritimus Phipps - 1964

A revision of the beetles of the genus Helophorus F. (Col., Hydrophilidae), subgenera Orphelophorus d'Orchymont, Gephelophorus Sharp and Meghelophorus Kuwert - 1970

No title - 1970

No title - 1974

A new species of Thiodina (Araneae: Salticidae) from Dominican amber - 1990

Distribution and biogeography of the order Raphidioptera: updated facts and a new hypothesis - 1998

A cladistic analysis and taxonomic revision of the Plesiosauria (Reptilia: Sauropterygia) - 2001