@article{ETNA_1995__3__a7,
     author = {Stewart,  G.W.},
     title = {On graded {QR} decompositions of products of matrices},
     journal = {Electronic transactions on numerical analysis},
     pages = {39--49},
     year = {1995},
     volume = {3},
     zbl = {0855.65036},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_1995__3__a7/}
}