%0 Journal Article %A Groetsch, C. W. %T Steepest Descent and Least Squares Solvability %J Canadian mathematical bulletin %D 1974 %P 275-276 %V 17 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-053-7/ %R 10.4153/CMB-1974-053-7 %F 10_4153_CMB_1974_053_7