1. Waldgrenzen und subrezenten Pollenspektren in Petsamo Lappland;Aario;Annales Academiae Scientiarum Fennicae A 54,1940
2. The differential ability of aquatic plants to utilize the inorganic carbon supply in fresh waters;Allen;New Phytologist,1981
3. 14C dating of plant macrofossils in lake sediment;Andree;Radiocarbon,1986
4. Vegetational development during the Late-Würm at Lobsigensee (Swiss Plateau). Studies in the Late Quaternary of Lobsigensee 1;Ammann;Revue de Paléobiologie,1983
5. Silicone oil as mounting medium for pollen grains;Andersen;Danmarks Geologiske Undersøgelse, IV. Raekke,1960