"Paul Karrer (21 April 1889 \u2013 18 June 1971) was a Swiss organic chemist best known for his research on vitamins. He and Walter Haworth won the Nobel Prize for Chemistry in 1937."@en . "1971Z"^^ . "1971-06-18Z"^^ . "Karrer, Paul"@en . . . . . . . "1889Z"^^ . . . . "Paul Karrer"@en . "1889-04-21Z"^^ . "Swiss chemist" . .