@article{AM2_1992__43_1_137460,
     author = {Walter Benz},
     title = {A conditional dilation equation.},
     journal = {Aequationes mathematicae},
     pages = {177--182},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {1992},
     zbl = {0756.39014},
     url = {http://geodesic.mathdoc.fr/item/AM2_1992__43_1_137460/}
}