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@article{ELMA_1990__45_6_141474, author = {R.H. Eddy}, title = {A generalization of {Nagel's} middlespoint.}, journal = {Elemente der Mathematik}, pages = {14--18}, publisher = {mathdoc}, volume = {45}, number = {6}, year = {1990}, zbl = {0701.51009}, url = {http://geodesic.mathdoc.fr/item/ELMA_1990__45_6_141474/} }
R.H. Eddy. A generalization of Nagel's middlespoint.. Elemente der Mathematik, Tome 45 (1990) no. 6, pp. 14-18. http://geodesic.mathdoc.fr/item/ELMA_1990__45_6_141474/