@ARTICLE{
author={Simonyi Gabor,Tardos Gabor,Vrecica Sinisa T},
year={2009},
title={Local Chromatic Number And Distinguishing The Strength Of Topological Obstructions},
journal={TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY},
volume={361},
number={2},
pages={889-908},
document_type={Article},
}