@Article{BVMC:283045, author = {Navarro, Pablo Eugenio}, author = {Bouvier, Hernán G.}, title = {Presentación. Problemas abiertos}, journal = {Discusiones. Núm. 9, 2009}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2011}, year = {2011}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmckp8m1} }