%0 journal article %@ 0013-936X %A Richnow, H.H., Eschenbach, A., Mahro, R., Kaestner, K., Annweiler, F., Seifert, R., Michaelis, W. %D 1999 %J Environmental Science and Technology %N 21 %P 3761-3767 %T Formation of Nonextractable Soil Residues: A Stable Isotope Approach %U 21 %X