@article{10_4153_CMB_1970_043_9,
     author = {Bishop, E. R.},
     title = {On a {Theorem} of {Mitchell}},
     journal = {Canadian mathematical bulletin},
     pages = {215--217},
     year = {1970},
     volume = {13},
     number = {2},
     doi = {10.4153/CMB-1970-043-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1970-043-9/}
}