. "1884"^^ . . _:Bf0102093719a113b4e84707841b60eca . "Hopf, Ludwig (1884-)" . . . "Ludwig" . "Ludwig Hopf" . "Hopf" . _:Bf0102093719a113b4e84707841b60eca . _:Bf0102093719a113b4e84707841b60eca . _:Bf0102093719a113b4e84707841b60eca "2023-05-20"^^ . _:Bf0102093719a113b4e84707841b60eca . _:Bf0102093719a113b4e84707841b60eca . _:Bf0102093719a113b4e84707841b60eca "069189358" . _:Bf0102093719a113b4e84707841b60eca . _:Bf0102093719a113b4e84707841b60eca . _:Bf0102093719a113b4e84707841b60eca .