@InProceedings{huang_et_al:LIPIcs.CONCUR.2017.20, author = {Huang, Mingzhang and Yin, Qiang}, title = {{Two Lower Bounds for BPA}}, booktitle = {28th International Conference on Concurrency Theory (CONCUR 2017)}, pages = {20:1--20:16}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-048-4}, ISSN = {1868-8969}, year = {2017}, volume = {85}, editor = {Meyer, Roland and Nestmann, Uwe}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2017.20}, URN = {urn:nbn:de:0030-drops-77772}, doi = {10.4230/LIPIcs.CONCUR.2017.20}, annote = {Keywords: BPA, branching bisimulation, regularity} }