"Stephen M Ratchford"@nl . "\u7814\u7A76\u8005"@ja . "Stephen M Ratchford"@en . "investigador"@es . "researcher"@en . . "\u0935\u0948\u091C\u094D\u091E\u093E\u0928\u093F\u0915"@hi . "\u7814\u7A76\u8005"@zh . "Stephen M Ratchford"@nl . . "Stephen M Ratchford"@en . . . . "\u0438\u0437\u0438\u043B\u0434\u04E9\u04E9\u0447\u04AF"@ky . "wetenschapper"@nl . "0000-0002-6300-7600" . "\u044D\u0440\u0434\u044D\u043C\u0442\u044D\u043D"@mn . "\u0434\u043E\u0441\u043B\u0456\u0434\u043D\u0438\u043A"@uk . . . . . "Stephen M Ratchford"@en . . "Stephen Ratchford"@en . . "Stephen M Ratchford"@nl . . .