@article{10_4153_CJM_1969_019_6,
     author = {Kennison, J. F.},
     title = {Normal {Completions} of {Small} {Categories}},
     journal = {Canadian journal of mathematics},
     pages = {196--201},
     year = {1969},
     volume = {21},
     number = {1},
     doi = {10.4153/CJM-1969-019-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-019-6/}
}