@article{2008_IEEE_TIP_Lyapunov,
  author    = {Jo{\~a}o M. Sanches and Jacinto C. Nascimento and Jorge S. Marques},
  title     = {Medical Image Noise Reduction Using the Sylvester-Lyapunov Equation},
  journal   = {IEEE Transactions on Image Processing},
  volume    = {17},
  number    = {9},
  year      = {2008},
  pages     = {1522-1539},
  ee        = {http://dx.doi.org/10.1109/TIP.2008.2001398},
  bibsource = {DBLP, http://dblp.uni-trier.de}