@article{GroetschelHenk2003, author = {Martin Gr{\"o}tschel and Martin Henk}, title = {The Representation of Polyhedra by Polynomial Inequalities}, journal = {Discrete \& Computational Geometry}, volume = {29}, number = {4}, pages = {485 -- 504}, doi = {10.1007/s00454-003-0782-y}, year = {2003}, }