Baltussen, J.2007-07-102007-07-102006Methexis, 2006; 19(1):7-200327-02890327-0289http://hdl.handle.net/2440/36119© Academia VerlagenAn empedoclean 'hearing aid'? Fragment b99 revisitedJournal article002006247410.1163/24680974-9000049051591Baltussen, J. [0000-0002-8262-1833]