1. The relative pollen productivity and pollen representation of north European trees, and correction factors for tree pollen spectra determined by surface pollen analyses from forests;Andersen;Danmarks Geologiske Undersogelse Series II,1970
2. Holocene paleoenvironments in southeastern Minnesota – Chasing the prairie – Forest ecotone;Baker;Palaeogeography Palaeoclimatology Palaeoecology,2002
3. Pollen-based continental climate reconstructions at 6 and 21 ka: A global synthesis;Bartlein;Climate Dynamics,2013
4. Arid lands paleobiogeography: The fossil rodent midden record in the Americas;Betancourt,2004
5. Packrat Middens: The Last 40,000 Years of Biotic Change;Betancourt,1990