1. Cluster Analysis for Applications;Anderberg,1973
2. More is different;Anderson;Science,1972
3. The student ensemble of correlation matrices: eigenvalue spectrum and Kullback–Leibler entropy;Biroli;Acta Physica Polonica B,2007
4. Superparamagnetic clustering of data;Blatt;Physical Review Letters,1996
5. Taxonomy of stock market indices;Bonanno;Physical Review E,2000