1. On correlation between variables of constant sum;Chayes;Jour. Geophys. Res.,1960
2. Ratio correlation;Chayes,1971
3. SNARK—a four-dimensional trend-surface computer program;Clark;Computers & Geosciences,1977
4. Statistics and data analysis in geology;Davis,1973
5. KWIKR8, a FORTRAN IV program for multiple regression and geologic trend analysis;Esler;Kansas Geol. Survey Computer Contr.,1968