@inbook{inbook, title = {{Possible Worlds: Philosophical Theories}}, publisher = {{Elsevier}}, url = {{}}, year = {{2006}}, month = {{12}}, author = {{Gregory D}}, doi = {{10.1016/b0-08-044854-2/01210-4}}, isbn = {{9780080448541}}, pages = {{774-776}}, note = {{Accessed on 2024/12/22}}}