%0 Journal Article
%A Ake Björck
%T A Direct Method for Sparse Least Squares Problems with Lower and Upper Bounds.
%J Numerische Mathematik
%D 1989
%P 19-32
%V 54
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1989__54_3_133301/
%F NUMA_1989__54_3_133301