\newcommand{\etalchar}[1]{$^{#1}$}
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\newblock Part-whole Relations in Object-Centered Systems: An Overview.
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\newblock Extensional Knowledge for semantic query optimization in a mediator
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\bibitem[BCV99]{bergamaschi99semantic}
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\newblock Semantic Integration of Semistructured and Structured Data Sources.
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\bibitem[BGL{\etalchar{+}}99]{MIX-SIGMOD-99}
C.~Baru, A.~Gupta, B.~Lud{\"a}scher, R.~Marciano, Y.~Papakonstantinou,
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\bibitem[BST{\etalchar{+}}00]{bozdagi00:_increas_number_synap_punct_durin}
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\bibitem[Dra92]{draxler92:_power_prolog_sql_compil}
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\newblock A Powerful Prolog to SQL Compiler.
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\bibitem[FLOa]{flora}
\textsc{Flora} Homepage.
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\bibitem[FLOb]{florid}
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\bibitem[GLM00]{gupta-ludaescher-martone-SSDBM-00}
A.~Gupta, B.~Lud{\"a}scher, and M.~E. Martone.
\newblock Knowledge-Based Integration of Neuroscience Data Sources.
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\bibitem[GLM01]{gupta-ludaescher-martone-ICDE-demo-01}
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\bibitem[GLM{\etalchar{+}}02b]{gupta02:_system_manag_alter_model_model_mediat}
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\bibitem[HLLS98]{himmeroeder-lausen-ludaescher-schlepphorst-EDBT-DEMO-98}
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\bibitem[KMA{\etalchar{+}}98]{knoblock98modeling}
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\newblock Semantic and Schematic Similarities between Database Objects: A
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\bibitem[LGM00]{ludaescher-gupta-martone-VLDB-00}
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\bibitem[LGM01]{ludaescher-gupta-martone-ICDE-01}
B.~Lud{\"a}scher, A.~Gupta, and M.~E. Martone.
\newblock Model-Based Mediation with Domain Maps.
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\bibitem[LHL{\etalchar{+}}98]{ludaescher-himmeroeder-IS-98}
B.~Lud{\"a}scher, R.~Himmer\"oder, G.~Lausen, W.~May, and C.~Schlepphorst.
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\bibitem[LLM98]{lausen-ludaescher-may-MOC-98}
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\bibitem[LPV00]{ludaescher-papakonstantinou-velikhov-EDBT-00}
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\bibitem[LRO96]{levy-rajaraman-ordille-VLDB-96}
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\bibitem[LYV{\etalchar{+}}98]{li-yerneni-vassalos-SIGMODDEMO-98}
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\bibitem[MGL{\etalchar{+}}02]{maryann02:_feder_brain_data_knowl_guided_mediat}
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\bibitem[MGW{\etalchar{+}}02]{CCDB-paper02}
M.~E. Martone, A.~Gupta, M.~Wong, X.~Qian, G.~Sosinsky, S.~Lamont,
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\newblock Capabilities-Based Query Rewriting in Mediator Systems.
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\bibitem[PTU00]{DIKE}
L.~Palopoli, G.~Terracina, and D.~Ursino.
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\bibitem[PV01]{papakonstantinou01:_enosy_market_data_integ_platf}
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\bibitem[QLMG02]{qian02:_navig_virtual_infor_sourc_know_me}
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\bibitem[YK00]{yang00:_flora}
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