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@article{JGG_2009_13_2_JGG_2009_13_2_a9, author = {H. Kaufmann }, title = {Dynamic {Differential} {Geometry} in {Education}}, journal = {Journal for geometry and graphics}, pages = {241--254}, publisher = {mathdoc}, volume = {13}, number = {2}, year = {2009}, url = {http://geodesic.mathdoc.fr/item/JGG_2009_13_2_JGG_2009_13_2_a9/} }
H. Kaufmann . Dynamic Differential Geometry in Education. Journal for geometry and graphics, Tome 13 (2009) no. 2, pp. 241-254. http://geodesic.mathdoc.fr/item/JGG_2009_13_2_JGG_2009_13_2_a9/