1. KWICR8, a FORTRAN IV program for multiple regression and geologic trend analysis;Esler;Kansas Geol. Survey Computer Contr.,1968
2. The use of multiple measurements in taxonomic problems;Fisher;Annal Eugenics,1936
3. A computer method for four variable trend analysis illustrated by a study of oil-gravity variations in southeastern Kansas;Harbaugh;Kansas Geol. Survey Bull.,1964