M. Kleber, Mertz, C., Zikeli, S., Knicker, H., and Jahn, R.,
“Changes in surface reactivity and organic matter composition of clay subfractions with duration of fertilizer deprivation”,
European Journal of Soil Science, vol. 55, no. 2, pp. 381 - 391, 2004.
M. Kleber, Röner, J., Chenu, C., Glaser, B., Knicker, H., and Jahn, R.,
“PREHISTORIC ALTERATION OF SOIL PROPERTIES IN A CENTRAL GERMAN CHERNOZEMIC SOIL”,
Soil Science, vol. 168, no. 4, pp. 292 - 306, 2003.
OREGON STATE UNIVERSITY
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