"1908-04-28Z"^^ . . "1998-04-02Z"^^ . "1998Z"^^ . . . "Eberhard Friedrich Michael Rees (April 28, 1908 \u2013 April 2, 1998) was a German-American (by becoming a naturalized citizen of the United States) rocketry pioneer and the second director of NASA's Marshall Space Flight Center."@en . . "Rees, Eberhard"@en . "German rocket scientist" . . "1908Z"^^ . . . . "Dr Eberhard Rees"@en .