@article{1311,
  author = {Mohamed Mahmoud and Xuemin Shen},
  title = {Esip: Secure incentive protocol with limited use of public-key cryptography for multihop wireless networks},
  year = {2011},
  journal = {IEEE Transactions on Mobile Computing},
  volume = {10},
  number = {7},
  pages = {997-1010},
  publisher = {IEEE},
}