TNT-NN: A Fast Active Set Method for Solving Large Non-Negative Least Squares Problems. - Joe M. Myre; Erich Frahm; David J. Lilja; Martin O. Saar (ICCS, 2017)

TNT: A Solver for Large Dense Least-Squares Problems that Takes Conjugate Gradient from Bad in Theory, to Good in Practice. - Joseph M. Myre; Erich Frahm; David J. Lilja; Martin O. Saar (IPDPS Workshops, 2018)