@article{BAG_1986__23_138346,
     author = {H. Struve and R. Struve},
     title = {The {Desargues} configuration and inversive geometry},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {15--26},
     publisher = {mathdoc},
     volume = {23},
     year = {1986},
     zbl = {0632.51003},
     url = {http://geodesic.mathdoc.fr/item/BAG_1986__23_138346/}
}