Autore:Oskar Backlund

Oskar

Backlund XIX secolo/XX secolo astronomo svedese

  1. 1,0 1,1 data.bnf.fr
  2. 2,0 2,1 Dictionary of Swedish National Biography
  3. Southern Africa Association for the Advancement of Science
  4. 4,0 4,1 Comité des travaux historiques et scientifiques
  5. Swedish church birth records