@article{10_4153_CJM_1977_056_3,
     author = {Gilman, Robert},
     title = {Finite {Quotients} of the {Automorphism} {Group} of a {Free} {Group}},
     journal = {Canadian journal of mathematics},
     pages = {541--551},
     year = {1977},
     volume = {29},
     number = {3},
     doi = {10.4153/CJM-1977-056-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-056-3/}
}