Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1989__44_3_141457, author = {Roland H. Eddy}, title = {A {Desarguesian} dual for {Nagel's} middlespoint.}, journal = {Elemente der Mathematik}, pages = {79--80}, publisher = {mathdoc}, volume = {44}, number = {3}, year = {1989}, zbl = {0701.51008}, url = {http://geodesic.mathdoc.fr/item/ELMA_1989__44_3_141457/} }
Roland H. Eddy. A Desarguesian dual for Nagel's middlespoint.. Elemente der Mathematik, Tome 44 (1989) no. 3, pp. 79-80. http://geodesic.mathdoc.fr/item/ELMA_1989__44_3_141457/