@INPROCEEDINGS{sae11c-prole11,
  author={F. S\'aenz-P\'erez},
  title={{From relational to deductive databases}},
  booktitle={{XVI Jornadas de Ingenier\'{\i}a del Software y Bases de Datos, JISBD 
  2011 (SISTEDES)}},
  month={September},
  year={2011}
  }