@article{GRSME_1999_1999_1_a4,
     author = {Paquelier, Yves},
     title = {Interaccionar con un programa de construcci\'on matem\'atica.},
     journal = {La Gaceta de la Real Sociedad Matem\'atica Espa\~nola},
     pages = {122-134},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1999},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GRSME_1999_1999_1_a4/}
}