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