Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1988__43_3_141427, author = {H. Stachel}, title = {Ein bewegliches {Tetraederpaar.}}, journal = {Elemente der Mathematik}, pages = {65--75}, publisher = {mathdoc}, volume = {43}, number = {3}, year = {1988}, zbl = {0699.53012}, url = {http://geodesic.mathdoc.fr/item/ELMA_1988__43_3_141427/} }
H. Stachel. Ein bewegliches Tetraederpaar.. Elemente der Mathematik, Tome 43 (1988) no. 3, pp. 65-75. http://geodesic.mathdoc.fr/item/ELMA_1988__43_3_141427/