Oskar Backlund
[cs] Johan Oskar Backlund
[da] Oskar Backlund
[de] Oskar Backlund
[el] Όσκαρ Μπάκλουντ
[eo] Oskar Backlund
[es] Oskar Backlund
[et] Johan Backlund
[fr] Oskar Backlund
[gl] Johan Oskar Backlund
[hu] Oskar Backlund