@article{MAN_1972__197_162281,
     author = {D. van Dulst},
     title = {A {Note} on {B-} and {Br-Completeness.}},
     journal = {Mathematische Annalen},
     pages = {197--202},
     publisher = {mathdoc},
     volume = {197},
     year = {1972},
     zbl = {0226.46007},
     url = {http://geodesic.mathdoc.fr/item/MAN_1972__197_162281/}
}