. . . . "Vittinghoff" . "Friedrich Vittinghoff" . "1910"^^ . "Vittinghoff, Friedrich (1910-)" . _:B4ae607d3dc612149b989f7f0051d39f2 . "Friedrich" . _:B4ae607d3dc612149b989f7f0051d39f2 . _:B4ae607d3dc612149b989f7f0051d39f2 . _:B4ae607d3dc612149b989f7f0051d39f2 "2023-05-20"^^ . _:B4ae607d3dc612149b989f7f0051d39f2 . _:B4ae607d3dc612149b989f7f0051d39f2 . _:B4ae607d3dc612149b989f7f0051d39f2 "067678211" . _:B4ae607d3dc612149b989f7f0051d39f2 . _:B4ae607d3dc612149b989f7f0051d39f2 . _:B4ae607d3dc612149b989f7f0051d39f2 .