Marc Spielmann Jerzy Tyszkiewicz Jan Van den Bussche Distributed Computation of Web Queries Using Automata. 97-108 2002 conf/pods/2002 PODS http://doi.acm.org/10.1145/543613.543626 http://www.acm.org/sigs/sigmod/pods/proc02/papers/097-SpielmannTV.pdf db/conf/pods/pods02.html#SpielmannTB02