. . . "1890-10-17" . . . "Ernst Philipp Barthel" . . "Barthel, Ernst, mathématicien" . "Philipp" . . . . "Ernst"@en . "Barthel"@fr-FR . "R." . . "1953-02-16" . "Barthel, Ernst, médecin" . "Ernst R. Barthel" . "Ernst Bärthel" . . . "mathématicien Ernst Barthel" . . . "Barthel"@en . . "Ernst Barthel"@en . "Ernst Philipp Barthel" . "Bärthel" . . "médecin Ernst Barthel" . "Ernst Philipp" . . .