@InProceedings{jansen_et_al:LIPIcs.IPEC.2016.17, author = {Jansen, Bart M. P. and Wulms, Jules J. H. M.}, title = {{Lower Bounds for Protrusion Replacement by Counting Equivalence Classes}}, booktitle = {11th International Symposium on Parameterized and Exact Computation (IPEC 2016)}, pages = {17:1--17:12}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-023-1}, ISSN = {1868-8969}, year = {2017}, volume = {63}, editor = {Guo, Jiong and Hermelin, Danny}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.IPEC.2016.17}, URN = {urn:nbn:de:0030-drops-69275}, doi = {10.4230/LIPIcs.IPEC.2016.17}, annote = {Keywords: protrusions, boundaried graphs, independent set, equivalence classes, finite integer index} }