1. A comparison of theoretical slope models with slopes in the field;Ahnert;Zeitschrift für Geomorphologie Supplement-band,1970
2. Extractable iron in relation to soil age on terraces along the Truckee River, Nevada;Alexander,1974
3. Micromorphology of paleosols from the semiarid Southern High Plains of Texas;Allen,1974
4. The loess soils of the Nebraska portion of the transition region. Parts I–IV;Alway;Soil Science,1916