@InProceedings{vigna97:protecting,
  author =       {Giovanni Vigna},
  title =        {{Protecting Mobile Agents through Tracing}},
  booktitle =    {Proceedings of the International ECOOP Workshop on Mobile Object Systems},
  year =         1997,
  month =        {June},
  address =      {Jyvaskyla, Finland},
  note = {Online Proceedings}
}