Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1968__23_140891, author = {W.-D. Klix}, title = {Netzprojektion eines {Tetraeders.}}, journal = {Elemente der Mathematik}, pages = {78--85}, publisher = {mathdoc}, volume = {23}, year = {1968}, zbl = {0159.22205}, url = {http://geodesic.mathdoc.fr/item/ELMA_1968__23_140891/} }
W.-D. Klix. Netzprojektion eines Tetraeders.. Elemente der Mathematik, Tome 23 (1968), pp. 78-85. http://geodesic.mathdoc.fr/item/ELMA_1968__23_140891/