@article{PNA_2006_2006_1_a2, author = {Ambrose, Rebecca and Castro, Encarnaci\'on and Molina, Marta}, title = {Trabajo con {Igualdades} {Num\'ericas} para {Promover} {Pensamiento} {Relacional.}}, journal = {PNA}, pages = {33-46}, publisher = {mathdoc}, volume = {1}, number = {1}, year = {2006}, language = {es}, url = {http://geodesic.mathdoc.fr/item/PNA_2006_2006_1_a2/} }