@article{10_4153_CJM_1966_040_3,
     author = {Ginsburg, Seymour and Rose, Gene F.},
     title = {A {Characterization} of {Machine} {Mappings}},
     journal = {Canadian journal of mathematics},
     pages = {381--388},
     year = {1966},
     volume = {18},
     number = {1},
     doi = {10.4153/CJM-1966-040-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-040-3/}
}