@article{10_4153_CMB_1991_079_6,
     author = {Lester, J. A.},
     title = {A {Beckman-Quarles} {Type} {Theorem} for {Coxeter's} {Inversive} {Distance}},
     journal = {Canadian mathematical bulletin},
     pages = {492--498},
     year = {1991},
     volume = {34},
     number = {4},
     doi = {10.4153/CMB-1991-079-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-079-6/}
}