@article{2006-SISC-HM,
  author = {E. Haber and J. Modersitzki},
  title = {A Multilevel Method for Image Registration},
  year = {2006},
  journal = {SIAM J. Sci. Comput.},
  volume = {27},
  pages = {1594-1607},
  number = {5},
}