@article{CKK,
  file = {ckk.pdf},
  mrclass = {14Gxx (11Gxx)},
  mrnumber = {1 835 062},
  issn = {0025-5831},
  number = {1},
  year = {2001},
  author = {Cornelissen, Gunther and Kato, Fumiharu and Kontogeorgis, Aristides},
  pages = {55--85},
  coden = {MAANA},
  volume = {320},
  fjournal = {Mathematische Annalen},
  journal = {Math. Ann.},
  title = {Discontinuous groups in positive characteristic and automorphisms of {M}umford curves}
}