@InProceedings{aceto_et_al:LIPIcs.CONCUR.2020.18, author = {Aceto, Luca and Castiglioni, Valentina and Ing\'{o}lfsd\'{o}ttir, Anna and Luttik, Bas and Pedersen, Mathias Ruggaard}, title = {{On the Axiomatisability of Parallel Composition: A Journey in the Spectrum}}, booktitle = {31st International Conference on Concurrency Theory (CONCUR 2020)}, pages = {18:1--18:22}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-160-3}, ISSN = {1868-8969}, year = {2020}, volume = {171}, editor = {Konnov, Igor and Kov\'{a}cs, Laura}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2020.18}, URN = {urn:nbn:de:0030-drops-128303}, doi = {10.4230/LIPIcs.CONCUR.2020.18}, annote = {Keywords: Axiomatisation, Parallel composition, Linear time-branching time spectrum} }