@article{10_4153_CMB_2000_003_9,
     author = {Barnes, Bruce A.},
     title = {The {Commutant} of an {Abstract} {Backward} {Shift}},
     journal = {Canadian mathematical bulletin},
     pages = {21--24},
     year = {2000},
     volume = {43},
     number = {1},
     doi = {10.4153/CMB-2000-003-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2000-003-9/}
}