Hadwiger1957Illumination
Ungeloeste Probleme Nr. 20
misc1957
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Hugo Hadwiger, “Ungeloeste Probleme Nr. 20,” Elemente der Mathematik 12 (1957), 121.
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- author
- Hugo Hadwiger
- note
- Hugo Hadwiger, “Ungeloeste Probleme Nr. 20,” Elemente der Mathematik 12 (1957), 121.
- title
- Ungeloeste Probleme Nr. 20
- year
- 1957