@article{01184412, title = {Mathematics instruction in the twenty-first century.}, journal = {Documenta Mathematica}, year = {1998}, pages = {763-766}, zbl = {0903.00011}, language = {en}, url = {http://dml.mathdoc.fr/item/01184412} }
Lewis, D.J. Mathematics instruction in the twenty-first century.. Documenta Mathematica, (1998), pp. 763-766. http://gdmltest.u-ga.fr/item/01184412/