@article{PNA_2008_2008_1_a8,
     author = {Ca\~nadas, Mar{\'\i}a C. and  Castro, Encarnaci\'on and  Castro, Enrique},
     title = {Patrones, {Generalizaci\'on} y {Estrategias} {Inductivas} de {Estudiantes} de 3{\textordmasculine} y 4{\textordmasculine} de {Educaci\'on} {Secundaria} {Obligatoria} en el {Problema} de las {Baldosas.}},
     journal = {PNA},
     pages = {137-151},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {2008},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/PNA_2008_2008_1_a8/}
}