@article{QUE_2000_2000_1_a6,
     author = {Albert, Jos\'e Miguel and Mateu, Jorge and Pern{\'\i}as, J. C.},
     title = {An\'alisis de estructura espacial usando {\'\i}ndices planos.},
     journal = {Q\"uestii\'o},
     pages = {27-51},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/QUE_2000_2000_1_a6/}
}