"Burckhardt, Johann Jacob" . "Burckhardt" . "1903"^^ . . "Burckhardt, Johann Jakob" . _:B7d0045c1812a612ca79a2a4393238bfc . . "Burckhardt, J.J. (1903-)" . . "J.J. Burckhardt" . . "J.J." . _:B7d0045c1812a612ca79a2a4393238bfc . _:B7d0045c1812a612ca79a2a4393238bfc . _:B7d0045c1812a612ca79a2a4393238bfc "2023-05-21"^^ . _:B7d0045c1812a612ca79a2a4393238bfc . _:B7d0045c1812a612ca79a2a4393238bfc . _:B7d0045c1812a612ca79a2a4393238bfc "068793723" . _:B7d0045c1812a612ca79a2a4393238bfc . _:B7d0045c1812a612ca79a2a4393238bfc . _:B7d0045c1812a612ca79a2a4393238bfc .