A Graphical Technique for Displaying Correlation Matrices
James A. Koziol, Joel E. Alexander, Lance O. Bauer, Samuel Kuperman, Sandra L. Morzorati, Sean J. O'Connor, John Rohrbaugh, Bernice Porjesz, Henri Begleiter, John M Polich · The American Statistician · 1997
James A. Koziol, Joel E. Alexander, Lance O. Bauer, Samuel Kuperman, Sandra Morzorati, Sean J. O'Connor, John Rohrbaugh, Bernice Porjesz, Henri Begleiter, John Polich, A Graphical Technique for Displaying Correlation Matrices, The American Statistician, Vol. 51, No. 4 (Nov., 1997), pp. 301-304