On Digital plane preimage structure

@article{dcoeurjo_preimage_DAM,
      author = {Coeurjolly, D. and Sivignon, I. and Dupont, F. and Feschet, F. and Chassery, J. M.},
      editor = {Elsevier Science},
      journal = {Discrete Applied Mathematics},
      number = {1--3},
      pages = {78-92},
      title = {On Digital plane preimage structure},
      volume = {151},
      year = {2005}
}