. . . "J. Dufresne" . "Writer on Chess Jean DUFRESNE" . "Žanʺ" . "Jean"@en . "DuFresne" . "Žans Difrens" . "J." . "1829-02-14" . . . . . "Jean Düfresne" . ".." . . . ".. Dufresne" . "Ī." . "DUFRESNE, Jean, Writer on Chess" . . "Djufrenʹ" . . "Žanʺ Djufrenʹ" . "1893-04-13" . "Дюфрень, Жан" . "Dufresne"@en . "E.S. Freund Jean Dufresne" . "Dufresne"@fr-FR . . "Düfresne" . "Ī. Djufrenʺ" . "DUFRESNE" . . "ז'אן דיפרן" . . "Ī. Djufrenʺ" . "deutscher Schachspieler und -autor" . "Dufresne, ...," . . "Dufresne, Jean, E.S. Freund" . "J. Dufresne" . "Djufrenʺ" . "Jean DuFresne" . . "Žanʺ Djufrenʹ" . "Jean Dufresne"@en .