Querying Databases and XML Documents: Comparative Study and a New Proposal. - Ana Fermoso García; María José Gil Larrea; Jesús Luis Díaz Labrador (ICWI, 2003)

Foundations of a New Proposal for Querying Relational Databases and XML Documents. - Ana Fermoso García; María José Gil Larrea; Luis Joyanes Aguilar; Jesús Luis Díaz Labrador (ICWE, 2003)