@Article{KP04,
author={Sébastien  Konieczny and Ramón  Pino Pérez},
title= {Propositional belief base merging or how to merge beliefs/goals coming from several sources and some links with social choice theory},
journal = {European Journal of Operational Research},
volume = {160}, 
number = {3},
pages = {785-802},
year= {2005}
}