@article{TRSPY_2009_265_a16,
     author = {F. Murtagh},
     title = {Symmetry in {Data} {Mining} and {Analysis:} {A~Unifying} {View} {Based} on {Hierarchy}},
     journal = {Informatics and Automation},
     pages = {189--210},
     publisher = {mathdoc},
     volume = {265},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2009_265_a16/}
}