@article{Rozier1991,
  author    = {{Olivier Rozier}},
  title     = {{Probleme de Syracuse: ``Majorations'' Elementaires des Cycles}},
  journal   = {{Singularité}},
  year      = {{1991}},
  volume    = {{2}},
  number    = {{5}},
  pages     = {{8--11}},
}