1958
On the Photo:
- Bruins, E.M. (back left)
- Burckhardt, Johann Jakob (from back)
- Heller, Siegfried (right)
Occasion:IV. Mathematikgeschichtliches Kolloquium
Location: Oberwolfach
Source: Grattan-Guinness, Enid
Year: 1958
Photo ID: 15820
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