@article{JGG_1997_1_2_a4,
     author = {M. Hoffmann},
     title = {On the {Theorems} of {Central} {Axonometry}},
     journal = {Journal for geometry and graphics},
     pages = {151--156},
     year = {1997},
     volume = {1},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/JGG_1997_1_2_a4/}
}