Warning - the bibtex entry below may be invalid: 
Missing 'booktitle' field 
@inproceedings{cesn07,
  author = "Arda Nural, Silvia Nittel, Niki Trigoni and Neal Pettigrew",
  journal = "Conference on Coastal Environmental Sensing Networks (CESN)",
  title = "A Model for Motion Pattern Discovery in Ocean Drifter Networks",
  year = "2007",
}