@article{aneffectivealgorithmforandphase,
  title = {An Effective Algorithm for and Phase Transitions of the Directed Hamiltonian Cycle Problem},
  author = {Gerold Jäger and Weixiong Zhang},
  year = {2014},
  eprint = {1401.3863},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1401.3863v1},
}