(Q63003406)
Statements
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2 references
Willem Cornelis de Graaff (Dutch)
1 reference
2 references
2 references
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2 February 1877Gregorian
2 references
1 reference
10 May 1944
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11 May 1944
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1 reference
2 references
1 reference
1 September 1910Gregorian
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1 reference