@inbook { 11566_41224, title = {Business groups analysis by hierarchical clustering}, booktitle = {Classification and Data Analysis 2005. Book of Short Papers. Meeting of the Classification and Data Analasys Group of the Italian Statistical Society}, year = {2005}, publisher = {Monte Universit{\`a} Parma Editore}, organization = {Monte Universit{\`a} Parma Editore}, address = {PARMA}, keywords = {Business Groups }, author = {D. Potena and C. Diamantini and D. Iacobucci and M. Panti} }