@article{DBLP:journals/twc/HongP09,
  author    = {Chi-Yao Hong and
               Ai-Chun Pang},
  title     = {3-Approximation algorithm for joint routing and link scheduling
               in wireless relay networks},
  journal   = {IEEE Transactions on Wireless Communications},
  volume    = {8},
  number    = {2},
  year      = {2009},
  pages     = {856-861},
  ee        = {http://dx.doi.org/10.1109/TWC.2009.071193},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}