@article{10_4153_CJM_1979_040_4,
     author = {Ellers, Erich W.},
     title = {Factorization of {Affinities}},
     journal = {Canadian journal of mathematics},
     pages = {354--362},
     year = {1979},
     volume = {31},
     number = {2},
     doi = {10.4153/CJM-1979-040-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1979-040-4/}
}