@article{ETNA_2007__26__a17,
     author = {Stange,  Peter and Griewank,  Andreas and Bollh\"ofer,  Matthias},
     title = {On the efficient update of rectangular {LU-factorizations} subject to low rank modifications},
     journal = {Electronic transactions on numerical analysis},
     pages = {161--177},
     year = {2007},
     volume = {26},
     zbl = {1171.15309},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2007__26__a17/}
}