Scandinavian Congress of Mathematicians, 13. Congrès des Mathématiciens Scandinaves, 13. Helsinki, 1957.
Scandinavian Congress of Mathematicians, 13. Congrès des Mathématiciens Scandinaves, 13. Helsinki, 1957.
- [1st ed.]
- Helsingfors: Mercators Tryckeri, 1958.
- 208 p.
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