@article {Margolis:October 1999:0003-2638:321, author = "Margolis, Eric", author = "Laurence, Stephen", title = "Where the regress argument still goes wrong: reply to Knowles", journal = "Analysis", volume = "59", year = "October 1999", abstract = "", pages = "321-327(7)", url = "http://www.ingentaconnect.com/content/bpl/anal/1999/00000059/00000264/art00015" doi = "doi:10.1111/1467-8284.00187" }