TY - JOUR AU - Anders Barrlund TI - Constrained least squares methods for linear timevarying DAE systems. JO - Numerische Mathematik PY - 1991 SP - 145 EP - 162 VL - 60 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1991__60_4_133589/ ID - NUMA_1991__60_4_133589 ER -