Warning - the bibtex entry below may be invalid: 
Missing 'booktitle' 
@conference{symington2009,
  author = "Andrew Symington and Pieter Kritzinger",
  journal = "Modelling, Analysis and Simulation of Computer and Telecommunication Systems, 17th Annual Meeting of the IEEE International Symposium on",
  location = "Imperial College, UK",
  title = "A Hardware Test Bed for Measuring IEEE 802.11g Distribution Coordination Function Performance (to appear)",
  year = "2009",
}