TY  - JOUR
AU  - Ake Björck
TI  - A Direct Method for Sparse Least Squares Problems with Lower and Upper Bounds.
JO  - Numerische Mathematik
PY  - 1989
SP  - 19
EP  - 32
VL  - 54
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NUMA_1989__54_3_133301/
ID  - NUMA_1989__54_3_133301
ER  -