@article{TM2_2016_XIX_1_a0,
     author = {Mar{\'\i}a \'Angeles Navarro and Pedro P\'erez Carreras},
     title = {An empirical study in the notion of area: a {Socratic} educational experience anchored in van {Hiele's} model},
     journal = {The Teaching of Mathematics},
     pages = {1 },
     publisher = {mathdoc},
     volume = {XIX},
     number = {1},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_2016_XIX_1_a0/}
}