@article {IOPORT.50293325,
    author       = {Arenas, Marcelo and P\'erez, Jorge and Reutter, Juan L. and Riveros, Cristian},
    title        = {Inverting schema mappings: bridging the gap between theory and practice},
    year         = {2009},
    journal      = {PVLDB},
    volume       = {2},
    number       = {1},
    pages        = {1018-1029},
    identifier   = {50293325},
}