@article{10_4153_CJM_1979_043_6,
     author = {Lester, J. A.},
     title = {Transformations of {n-Space} which {Preserve} a {Fixed} {Square-Distance}},
     journal = {Canadian journal of mathematics},
     pages = {392--395},
     year = {1979},
     volume = {31},
     number = {2},
     doi = {10.4153/CJM-1979-043-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1979-043-6/}
}