@article{article, title = {{Moral Realism and Twin Earth}}, url = {{}}, year = {{1999}}, month = {{1}}, author = {{Laurence S and Margolis E and Dawson A}}, volume = {{1}}, journal = {{Facta Philosophica}}, issue = {{1}}, pages = {{135-165}}, note = {{Accessed on 2024/12/22}}}