@article{kothari:pas,
  title={{A Probabilistic Approach to Source Code Authorship Identification}},
  author={Kothari, J. and Shevertalov, M. and Stehle, E. and Mancoridis, S.}
  journal={Proceedings of the 5th International Conference on Information Technolog: New Generations (ITNG 2007, Las Vegas, April 7-9),. IEEE Computer 
Society},
  year={2007}
}