@article{ETNA_2006__22__a2,
     author = {Pinar, Ali and Chow, Edmond and Pothen, Alex},
     title = {Combinatorial algorithms for computing column space bases that have sparse inverses},
     journal = {Electronic transactions on numerical analysis},
     pages = {122--145},
     publisher = {mathdoc},
     volume = {22},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2006__22__a2/}
}