Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1995__50_4_141579, author = {Christian Okonek}, title = {Die vierte {Dimension.}}, journal = {Elemente der Mathematik}, pages = {107--115}, publisher = {mathdoc}, volume = {50}, number = {4}, year = {1995}, zbl = {0859.57021}, url = {http://geodesic.mathdoc.fr/item/ELMA_1995__50_4_141579/} }
Christian Okonek. Die vierte Dimension.. Elemente der Mathematik, Tome 50 (1995) no. 4, pp. 107-115. http://geodesic.mathdoc.fr/item/ELMA_1995__50_4_141579/