%0 Journal Article %A Bordogna, Gloria %A Pasi, Gabriella %T Flexible representation and querying of heterogeneous structured documents %J Kybernetika %D 2000 %P 617-633 %V 36 %N 6 %U http://geodesic.mathdoc.fr/item/KYB_2000_36_6_a1/ %G en %F KYB_2000_36_6_a1