Biblio
“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.
, “PREHISTORIC ALTERATION OF SOIL PROPERTIES IN A CENTRAL GERMAN CHERNOZEMIC SOIL”, Soil Science, vol. 168, no. 4, pp. 292 - 306, 2003.
,