@INPROCEEDINGS{anss13c-prole13,
  author={G. Aranda-L\'opez and S. Nieva and F. S\'aenz-P\'erez and J. Sánchez-Hern\'andez},
  title={{R-SQL: An SQL Database System with Extended Recursion}},
  booktitle={{XIII Jornadas sobre Programaci\'on y Lenguajes, PROLE2013
(SISTEDES)}},
  month={September},
  year={2013}
  }