@article{QUE_1996_1996_1_a4,
     author = {Vives, Sergi and Villarroya, Angel},
     title = {La combinaci\'on de t\'ecnicas de geometr{\'\i}a diferencial con an\'alisis multivariante cl\'asico: una aplicaci\'on a la caracterizaci\'on de las comarcas catalanas.},
     journal = {Q\"uestii\'o},
     pages = {449-482},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {1996},
     url = {http://geodesic.mathdoc.fr/item/QUE_1996_1996_1_a4/}
}