00264nam a2200097Ia 4500008004100000082001800041100003400059245002600093260003900119300000800158140113s9999    xx            000 0 und d  a631.4:53   L2  a"Kirkgham, D. & Powers, W.L."  aAdvanced Soil Physics  a1972bWiley IntersceincecNew York  a534