. . "Oort, Jan"@en . . "1900Z"^^ . "1992Z"^^ . . "1992-11-05Z"^^ . . . "1900-04-28Z"^^ . . . . . "Jan Hendrik Oort ForMemRS (/\u02C8\u0254rt/ or /\u02C8\u028A\u0259rt/; 28 April 1900 \u2013 5 November 1992) was a Dutch astronomer who made significant contributions to the understanding of the Milky Way and who was a pioneer in the field of radio astronomy."@en . . . "Jan Oort"@en . "Dutch astronomer" .