"Johann Gottfried" . "Sommer" . . "1782"^^ . "Johann Gottfried Sommer" . . "somm003" . . "Sommer, Johann Gottfried (1782-1848)" . "1848-of-11" . "Johann Gottfried Sommer" . _:Be577d2e02fae1e9b40ada981c3b52fe6 . . "Johann Gottfried Volte" . _:Be577d2e02fae1e9b40ada981c3b52fe6 . _:Be577d2e02fae1e9b40ada981c3b52fe6 "2021-02-08"^^ . _:Be577d2e02fae1e9b40ada981c3b52fe6 . _:Be577d2e02fae1e9b40ada981c3b52fe6 . _:Be577d2e02fae1e9b40ada981c3b52fe6 . _:Be577d2e02fae1e9b40ada981c3b52fe6 . _:Be577d2e02fae1e9b40ada981c3b52fe6 .