_:B9b6124ffd27434d60ff77f3fbc3f17a8 . "Donald E." . "Herdeck" . "1924"^^ . "Donald E. Herdeck" . . . "Herdeck, Donald E. (1924-)" . . _:B9b6124ffd27434d60ff77f3fbc3f17a8 . _:B9b6124ffd27434d60ff77f3fbc3f17a8 . _:B9b6124ffd27434d60ff77f3fbc3f17a8 "2023-05-22"^^ . _:B9b6124ffd27434d60ff77f3fbc3f17a8 . _:B9b6124ffd27434d60ff77f3fbc3f17a8 . _:B9b6124ffd27434d60ff77f3fbc3f17a8 "069630429" . _:B9b6124ffd27434d60ff77f3fbc3f17a8 . _:B9b6124ffd27434d60ff77f3fbc3f17a8 . _:B9b6124ffd27434d60ff77f3fbc3f17a8 .