. . "J. G."@en . "Dirk Jacobus Gysbert Smith" . "SMITH" . "D."@en . "Dirk" . "D" . . "Smith, D. J. G. (Dirk Jacobus Gysbert)" . . "D. J. G. Smith"@en . "D.J.G" . "Smith"@en . "Jacobus Gysbert" . "J G." . . "D J G. SMITH" . "D.J.G Smith" . "Dirk Jacobus Gysbert Smith" .