Manipulation Operations for an Interval-Extended Relational Model

@article{Lorentzos1995ManipulationOF,
  title={Manipulation Operations for an Interval-Extended Relational Model},
  author={Nikos A. Lorentzos and Alexandra Poulovassilis and Carol Small},
  journal={Data Knowl. Eng.},
  year={1995},
  volume={17},
  pages={1-29}
}