Modelling the interation of physical, chemical and biological processes Wessel, W.W. creator text University of Amsterdam Nieuwe Prinsengracht 130 c1997 monographic 151 p, ; ill. W.W.Wessel Includes bibliographical references Metal Nutrient Dynamics Organic Surface Layer of an Acidifying Forest Soil SD408 .W47 1997 9067870501 UOEL 000 20150707101444.0