Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{DCG_1988__3_1-2_131036, author = {G. Purdy}, title = {Repeated {Angles} in {E4} .}, journal = {Discrete & computational geometry}, pages = {73--76}, publisher = {mathdoc}, volume = {3}, number = {1-2}, year = {1988}, zbl = {0629.52014}, url = {http://geodesic.mathdoc.fr/item/DCG_1988__3_1-2_131036/} }
G. Purdy. Repeated Angles in E4 .. Discrete & computational geometry, Tome 3 (1988) no. 1-2, pp. 73-76. http://geodesic.mathdoc.fr/item/DCG_1988__3_1-2_131036/