@article{11271,
  author = {Yan Zhang and M. Fujise},
  title = {An Approximation and Its Applications in Wireless Networks Performance Analysis},
  year = {2008},
  journal = {Wiley Wireless Communications and Mobile Computing},
  volume = {8},
  number = {1},
  pages = {113-124},
  publisher = {John Wiley \& Sons, Ltd},
}