@article{MAN_1990__287_1_164697,
     author = {Christel Rotthaus},
     title = {Rings with approximation property.},
     journal = {Mathematische Annalen},
     pages = {455--466},
     publisher = {mathdoc},
     volume = {287},
     number = {1},
     year = {1990},
     zbl = {0702.13007},
     url = {http://geodesic.mathdoc.fr/item/MAN_1990__287_1_164697/}
}