1. Humic Substances in Soil, Sediment and Water—Geochemistry, Isolation and Characterization,1985
2. Isolation of humic and adherent organic substances in preparative scale from groundwater and surface water under field conditions by means of a mobile adsorption device;Hack;Aqua,1989
3. Quantification of partial structures in aquatic humic substances by volume integration of two-dimensional 13C nuclear magnetic resonance spectra;Lambert;Magn. Reson. Chem.,1992
4. Structural studies of marine and riverine humic matter by chemical degradation;Michaelis;Sci. Total Environ.,1989
5. The hopanoids;Ourisson;Pure Appl. Chem.,1979