Ana Fermoso García, María José Gil Larrea, Luis Joyanes Aguilar, Jesús Luis Díaz Labrador. Foundations of a New Proposal for Querying Relational Databases and XML Documents. In Juan Manuel Cueva Lovelle, Bernardo Martín González Rodríguez, Luis Joyanes Aguilar, José Emilio Labra Gayo, María del Puerto Paule Ruíz, editors, Web Engineering, International Conference, ICWE 2003, Oviedo, Spain, July 14-18, 2003, Proceedings. Volume 2722 of Lecture Notes in Computer Science, pages 411-412, Springer, 2003. [doi]
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