@incollection{Walter2012, author = {M. Walter}, title = {Sparsity of Lift-and-Project Cutting Planes}, booktitle = {Operations Research Proceedings 2012}, publisher = {Springer International Publishing}, month = {Jan}, year = {2012}, editor = {S. Helber and M. Breitner and D. R\"{o}sch and J. Graf von der Schulenburg and C. Sch\"{o}n and P. Sibbertsen and M. Steinbach and S. Weber and A. Wolter}, pages = {9--14}, address = {Hannover}, doi = {10.1007/978-3-319-00795-3_2} }