Titlebook: Regulatory and Economic Challenges in the Postal and Delivery Sector; Michael A. Crew,Paul R. Kleindorfer Conference proceedings 2005 Spri

interrogate

Mark van der Horstucture. We show that these families admit a least and greatest fixed point and that the well-grounded RCA semantics is characterised by the least fixed point. We then study the structure of other fixed points and characterise the interesting lattices as the self-supported fixed points.

积习已深

Kari Elkelänctive queries with negation. We show that a precise description can always be found in one of these languages for any set of documents. However, when disjunction is introduced, uniqueness of the solution is lost. In order to deal with this problem, we define a preferential criterion on queries, bas

Preamble

松果

objection

GENUS

Paul Dudley,Helen Jenkins,Leonardo Mautino,Sophie Richard

strdulate

Etienne Billette de Villemeur,Helmuth Cremer,Bernard Roy,Joëlle Toledano

情感脆弱

Catherine Cazals,Frédérique Fève,Jean-Pierre Florens,Bernard Roy

浸软

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