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11200 In memoriam of SCI members |
Archives no. | Content | Period |
In memoriam of Ralph Hegnauer, Aarau (Switzerland) 22.9.1910 - 17.11.1997 |
(1910 - 1997) |
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11251.12 |
Vision Days in commemoration of Ralph Hegnauer, Easter 11.-12.4.1998, Herzberg |
(1998) |
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