@ARTICLE {21532,
author={J.  Du and C.  Jiang and Z.  Han and H.  Zhang and S.M. Mumtaz},
doi={10.1109/TNSE.2017.2787746},
journal={IEEE Transactions on Network Science and Engineering},
title={Contract Mechanism and Performance Analysis for Data Transaction in Mobile Social Networks},
year={2017},
month={November},
volume={5},
number={69},
pages={98-110},
ISSN={2327-4697}
}