1. Robust Estimates of Location;Andrews,1972
2. Using faces to represent points in k-dimensional space graphically;Chernoff;J. Am. Stat. Ass.,1973
3. An interactive multidimensional data display and analysis system;Fisherkeller;Stanford Linear Accelerator Center Publication 1408,1974
4. A graphic way of describing changing multivariate patterns;Friedman,1972
5. A projection pursuit algorithm for exploratory data analysis;Friedman;IEEE Trans. Comput. C-23,1974