@InProceedings{BKM10,
author={Ramzi  Ben Larbi and S├ębastien  Konieczny and Pierre  Marquis},
title= {A characterization of optimality criteria for decision making under complete ignorance},
booktitle = {Twelfth International Conference on Principles of Knowledge Representation and Reasoning (KR'10)} ,
year= {2010}
}