"Heinz Kirchhoff" . _:Be2ebadf8b21213a2d7c03d99f3ac9618 . "Heinz" . . . "1905"^^ . "Kirchhoff" . "Kirchhoff, Heinz (1905-)" . . . _:Be2ebadf8b21213a2d7c03d99f3ac9618 . _:Be2ebadf8b21213a2d7c03d99f3ac9618 . _:Be2ebadf8b21213a2d7c03d99f3ac9618 "2023-05-21"^^ . _:Be2ebadf8b21213a2d7c03d99f3ac9618 . _:Be2ebadf8b21213a2d7c03d99f3ac9618 . _:Be2ebadf8b21213a2d7c03d99f3ac9618 "067757642" . _:Be2ebadf8b21213a2d7c03d99f3ac9618 . _:Be2ebadf8b21213a2d7c03d99f3ac9618 . _:Be2ebadf8b21213a2d7c03d99f3ac9618 .