@article{CC_2009_38_1_a9,
     author = {Pankowski, Tadeusz},
     title = {Schema mapping and query reformulation in peer-to-peer {XML} data integration system},
     journal = {Control and Cybernetics},
     pages = {173--192},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {2009},
     zbl = {1236.68061},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2009_38_1_a9/}
}