1. The morphology and development of the river valleys in southwestern Finland;Aartolahti;Annls Acad. Scient. Fenn. A,1965
2. Morphology, vegetation and development of Rokuanvaara, an esker and dune complex in Finland;Aartolahti;Fennia,1973
3. Earthquakes and seismic hazard in Finland;Ahjos;Engng Geol.,1984
4. Ice features and ice-thrust shore forms at Luodonselkä, Gulf of Bothnia, in winter 1972–73;Alestalo;Fennia,1976
5. Greenhouse impact in Fennoscandia-preliminary findings of a European workshop on the effects of climatic change;Boer,1990