Arranz Justel, J. J., A. Novoa Plasensia, and D. Sánchez Tamargo. “Estado Del Arte De Algoritmos De generalización Vectorial De Núcleos Urbanos”. GeoFocus. International Review of Geographical Information Science and Technology, no. 11, Nov. 2014, pp. 249-64, https://geofocus.org/index.php/geofocus/article/view/219.