1. “The Use of Faces to Represent Points in n-Dimensional Space Graphically,”;Chernoff,1971
2. “Plots of High Dimensional Data,”;Andrews;Biometrics,1972
3. “Methods for Statistical Data Analysis of Multivariate Observations,”;Gnanadesikan,1977
4. Turner, D. W., Tidmore, F. E. (1977). “Clustering with Chernoff-Type Faces,” Proceedings of the Statistics Section, American Statistical Association Annual Meeting, Chicago, IL.
5. “How to Lie with Statistics,”;Huff,1954