1. NAP percentages as an expression of cleared areas;Aaby;Paläoklimaforschung/Palaeoclimate Res.,1994
2. Younger Dryas end moraines between Hardangerfjorden and Sognefjorden, Western Norway;Aarseth;Boreas,1974
3. Postglacial forest limits in the central south Norwegian mountains: radiocarbon datings of subfossil pine and birch specimens;Aas;Nor. Geogr. Tidsskr.,1988
4. The relative pollen productivity and pollen representation of North European trees, and correction factors for tree pollen spectra;Andersen;Dan. Geol. Unders. II,1970
5. Maps for terrestrial non-tree pollen (NAP) percentages in north and central Europe 1800 and 1450yrB.P.;Andersen;Paläoklimaforschung/Palaeoclimate Res.,1994