. . . "1809"^^ . "Borel, Petrus (1809-1859)"@fr . . "1809"^^ . "026650274" . "1809"^^ . "Borel" . . . "http://catalogue.bnf.fr/ark:/12148/cb11885796b" . . "2019-02-21" . "Borel"@fr . "Petrus" . . "2019-02-21" . "11885796" . . "0000000109285178" . "Petrus Borel" . "11885796" . "1859"^^ . "0000000109285178" . "1859"^^ . . "Petrus"@fr . . "026650274" . "1859"^^ . . .