. "Antoine Augustin Cournot"@en . . . "Antoine Augustin Cournot (28 August 1801 \u2013 31 March 1877) was a French philosopher and mathematician who also contributed to the development of economics theory."@en . "1877Z"^^ . . . . . . "French mathematician" . . "1801-08-28Z"^^ . "1877-03-31Z"^^ . . . "1801Z"^^ . "Cournot, Antoine Augustin"@en . .