"Martin Schwarzschild (May 31, 1912 \u2013 April 10, 1997) was a German-born American astrophysicist. He was the son of famed German physicist Karl Schwarzschild and the nephew of the Swiss astrophysicist Robert Emden."@en . . "Schwarzschild, Martin"@en . . "Martin Schwarzschild"@en . . . . "1997-04-10Z"^^ . "1997Z"^^ . . . "1912-05-31Z"^^ . . "German astronomer" . "1912Z"^^ . . . . .