@article{TM2_1998_I_1_a1,
     author = {Judita Cofman},
     title = {Explorations and {Discoveries} in the {Classroom}},
     journal = {The Teaching of Mathematics},
     pages = {23 },
     publisher = {mathdoc},
     volume = {I},
     number = {1},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_1998_I_1_a1/}
}