%0 Journal Article
%A Calvetti, D.
%A Lewis, B.
%A Reichel, L.
%A Sgallari, F.
%T Tikhonov regularization with nonnegativity constraint
%J Electronic transactions on numerical analysis
%D 2004
%P 153-173
%V 18
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ETNA_2004__18__a3/
%G en
%F ETNA_2004__18__a3