@article{agarwal06,
  author        = "Vivek Agarwal and Andrei V. Gribok and Mongi A. Abidi",
  title         = "Image Restoration Using L1 Norm Penalty Function",
 journal        = "Inverse Problems in Science and Engineering",
  volume        = "15",
  number        = "8",
  year          = "2007",
  pages         = "785-809"
};