"du" . "Mach" . . . "Ernst" . "Mach, Ernst (1838-1916)" . _:B3e98a69bdf210587d3fee00eb2d86257 . "1838"^^ . "Ernst Mach" . "1916"^^ . . . _:B3e98a69bdf210587d3fee00eb2d86257 . _:B3e98a69bdf210587d3fee00eb2d86257 . _:B3e98a69bdf210587d3fee00eb2d86257 "2023-05-22"^^ . _:B3e98a69bdf210587d3fee00eb2d86257 . _:B3e98a69bdf210587d3fee00eb2d86257 . _:B3e98a69bdf210587d3fee00eb2d86257 "068378378" . _:B3e98a69bdf210587d3fee00eb2d86257 . _:B3e98a69bdf210587d3fee00eb2d86257 . _:B3e98a69bdf210587d3fee00eb2d86257 .