1. Robust Estimates of Location: Survey and Advances;Andrews,1972
2. Representation of regional, local and residual variability of geochemical data by means of filtering techniques;Björklund,1981
3. Analysis of geochemical data;Cameron,1983
4. Statistical treatment of geochemical data;Campbell,1982
5. The implementation of an automated geochemical colour mapping system;Chork,1983