@article{ETNA_2005__20__a7,
     author = {Bardsley, Johnathan M.},
     title = {A nonnegatively constrained trust region algorithm for the restoration of images with an unknown blur},
     journal = {Electronic transactions on numerical analysis},
     pages = {139--153},
     publisher = {mathdoc},
     volume = {20},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2005__20__a7/}
}