@article{GDZPPN002082233,
title = {A Desarguesian dual for Nagel's middlespoint.},
journal = {Elemente der Mathematik},
volume = {44},
year = {1989},
pages = {79-80},
zbl = {0701.51008},
url = {http://dml.mathdoc.fr/item/GDZPPN002082233}
}
Eddy, Roland H. A Desarguesian dual for Nagel's middlespoint.. Elemente der Mathematik, Tome 44 (1989) pp. 79-80. http://gdmltest.u-ga.fr/item/GDZPPN002082233/