@inproceedings{BraunFioriniPokuttaetal.2012, author = {Braun, G{\´a}bor and Fiorini, Samuel and Pokutta, Sebastian and Steurer, D.}, title = {Approximation Limits of Linear Programs (Beyond Hierarchies)}, booktitle = {Proceedings of FOCS}, arxiv = {http://arxiv.org/abs/1204.0957}, year = {2012}, language = {en} }