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Burckhardt, Carl Jacob (1891-1974) (27)
Burckhardt, Elisabeth (1906-1989)(3)
Bernoulli, Christoph (1897-1981)(2)
Burckhardt, Carl Jacob (1891-1974) (27)
Burckhardt, Elisabeth (1906-1989)(3)
Bernoulli, Christoph (1897-1981)(2)