@ARTICLE{
author={Thomasse Stephan,Trotignon Nicolas,Vuskovic Kristina},
year={2017},
title={A Polynomial Turing-Kernel for Weighted Independent Set in Bull-Free Graphs},
journal={ALGORITHMICA},
volume={77},
number={3},
pages={619-641},
document_type={Article},
} 

@ARTICLE{
author={Thomasse Stephan,Trotignon Nicolas,Vuskovic Kristina},
year={2014},
title={A Polynomial Turing-Kernel for Weighted Independent Set in Bull-Free Graphs},
journal={GRAPH-THEORETIC CONCEPTS IN COMPUTER SCIENCE},
volume={8747},
number={},
pages={408-419},
document_type={Proceedings Paper},
}