@InProceedings{BFKP14,
author={Richard  Booth and Eduardo  Fermé and Sébastien  Konieczny and Ramón  Pino Pérez},
title= {Credibility-limited improvement operators},
booktitle = {Twenty First European Conference on Artifical Intelligence (ECAI'14)} ,
pages = {123-128},
year= {2014}
}