@article{anewapproachindynamictravelingsalesman,
  title = {A new approach in dynamic traveling salesman problem: a hybrid of ant colony optimization and descending gradient},
  author = {Farhad Soleimanian Gharehchopogh and Isa Maleki and Seyyed Reza Khaze},
  year = {2013},
  eprint = {1307.7435},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1307.7435v1},
}