TY - JOUR AU - B.F. Sherman TI - A Counterexample to Greenberg's Algorithm for Solving Linear Inequalities. JO - Numerische Mathematik PY - 1976 SP - 491 EP - 492 VL - 27 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1976__27_132470/ ID - NUMA_1976__27_132470 ER -