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Willem de Sitter

Dutch cosmologist (*1872 – †1934)
English: Willem de Sitter (6 May 1872 – 20 November 1934) was a Dutch mathematician, physicist and astronomer.
  • Willem de Sitter
    Willem de Sitter
  • Willem de Sitter (1872 – 1934)
    Willem de Sitter (1872 – 1934)
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