. "2011"^^ . "Birkfellner" . _:Ba40ebec5102fa963183eec6cbe139441 . . "Gerhard Birkfellner" . . "1941"^^ . "Gerhard" . . "Birkfellner, Gerhard (1941-2011)" . _:Ba40ebec5102fa963183eec6cbe139441 . _:Ba40ebec5102fa963183eec6cbe139441 . _:Ba40ebec5102fa963183eec6cbe139441 "2023-05-20"^^ . _:Ba40ebec5102fa963183eec6cbe139441 . _:Ba40ebec5102fa963183eec6cbe139441 . _:Ba40ebec5102fa963183eec6cbe139441 "067703666" . _:Ba40ebec5102fa963183eec6cbe139441 . _:Ba40ebec5102fa963183eec6cbe139441 . _:Ba40ebec5102fa963183eec6cbe139441 .