@Article{CDKLM07,
author={Sylvie  Coste-Marquis and Caroline  Devred and S√©bastien  Konieczny and Marie-Christine  Lagasquie-Schiex and Pierre  Marquis},
title= {On the merging of Dung's argumentation systems},
journal = {Artificial Intelligence},
volume = {171}, 
pages = {740-753},
year= {2007}
}