Altigran Soares da SilvaIrna M. R. Evangelista FilhaAlberto H. F. LaenderDavid W. EmbleyRepresenting and Querying Semistructured Web Data Using Nested Tables with Structural Variants.135-1512002conf/er/2002ERhttps://doi.org/10.1007/3-540-45816-6_20db/conf/er/er2002.html#SilvaFLE02