. . . . "Erik Gustav Elfving (June 25, 1908 \u2013 March 25, 1984) was a Finnish mathematician and statistician. In statistics, he wrote pioneering papers about the optimal design of experiments. He made other notable contributions to the mathematical sciences and to Finnish universities."@en . . . . . . "1984Z"^^ . "1908Z"^^ . . . . "Mathematical statistician" . . "1908-06-25Z"^^ . "Elfving, Erik Gustav"@en . . "1984-03-25Z"^^ . . . . . "Erik Gustav Elfving"@en . "Elfving, Gustav"@en . .