1. Andrews, H., Hunt, B.: Digital Image Restoration. Prentice-Hall, Englewood Cliffs (1977)
2. Bardsley, J., Vogel, C.R.: A nonnegativly constrained convex programming method for image reconstruction. SIAM J. Sci. Comput. 25(4), 1326–1343 (2004)
3. Bardsley, J.M., Goldes, J.: Regularization parameter selection methods for ill-posed Poisson maximum likelihood estimation. Inverse Probl. 25(9) (2009). doi: 10.1088/0266-5611/25/9/095,005
4. Bardsley, J.M., Merikoski, J., Vio, R.: The stabilizing properties of nonnegativity constraints in least-squares image reconstruction. IJPAM 43(1), 95–109 (2008)
5. Bardsley, J.M., Nagy, J.G.: Covariance-preconditioned iterative methods for nonnegatively constrained astronomical imaging. SIAM J. Matrix Anal. Appl. 27, 1184–1197 (2006)