@incollection {Urbaniak2009a, title = {Modal Logic and Philosophy. {A} case study.}, booktitle = {Logic, Philosophy and History of Science in Belgium. Proceedings of the Young Researchers Days 2008}, year = {2009}, pages = {79-83}, publisher = {Koninklijke Vlaamse Academie van Belgi{\"e}}, address = {Brussel}, author = {Urbaniak, Rafal and Rostalska, Agnieszka}, editor = {Weber, Erik and Libert, Thierry and Marage, Pierre and Vanpaemel, Geert} }