@InProceedings{giannopoulou_et_al:LIPIcs.FSTTCS.2014.85, author = {Giannopoulou, Archontia C. and Lokshtanov, Daniel and Saurabh, Saket and Suchy, Ondrej}, title = {{Tree Deletion Set Has a Polynomial Kernel (but no OPT^O(1) Approximation)}}, booktitle = {34th International Conference on Foundation of Software Technology and Theoretical Computer Science (FSTTCS 2014)}, pages = {85--96}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-77-4}, ISSN = {1868-8969}, year = {2014}, volume = {29}, editor = {Raman, Venkatesh and Suresh, S. P.}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2014.85}, URN = {urn:nbn:de:0030-drops-48261}, doi = {10.4230/LIPIcs.FSTTCS.2014.85}, annote = {Keywords: Tree Deletion Set, Feedback Vertex Set, Kernelization, Linear Equations} }