%0 Journal Article %T A Small Polyhedral Z-Acyclic 2-Complex in R4 %A Frank H. Lutz %A G¨šnter M. Ziegler %J Mathematics %D 2007 %I arXiv %X We present a small 4-dimensional polyhedral realization of a 2-dimensional Z-acyclic but non-contractible simplicial complex. %U http://arxiv.org/abs/0705.4262v1