@inproceedings{SchaafGerwinKoegelKnabneretal.2013, author = {Wolfgang Schaaf and Werner Gerwin and Ingrid K{\"o}gel-Knabner and Horst H. Gerke and Rainer Schulin and Michael Schloter and Reinhard F. H{\"u}ttl}, title = {Point zero: the missing link in initial soil formation concepts}, booktitle = {EGU General Assembly 2009, Vienna, Austria, 19 - 24 April 2009}, year = {2013}, }