1. Podzolization under forest and stump prairie vegetation in northern Michigan;Barrett;Geoderma,1997
2. Origin and history of stump prairies in northern Michigan: forest composition and logging practices;Barrett;Great Lakes Geographer,1998
3. An examination of podzolization near Lake Michigan using chronofunctions;Barrett;Can. J. Soil Sci.,1992
4. Soil development and spatial variability on geomorphic surfaces of different age;Barrett;Phys. Geogr.,1993
5. Soils and Geomorphology;Birkeland,1999