@InProceedings{KLM02,
author={Sébastien  Konieczny and Jérôme  Lang and Pierre  Marquis},
title= {Distance-based merging: a general framework and some complexity results},
booktitle = {Eighth International Conference on Principles of Knowledge Representation and Reasoning (KR'02)} ,
pages = {97-108},
year= {2002}
}