. . . "1487Z"^^ . "Michael Stifel or Styfel (1487 \u2013 April 19, 1567) was a German monk and mathematician. He was an Augustinian who became an early supporter of Martin Luther. He was later appointed professor of mathematics at Jena University."@en . "Stifel, Michael"@en . . "German mathematician" . "1567Z"^^ . . "Michael Stifel"@en . "1567-04-19Z"^^ . . .