(Q56422974)
Statements
1927
1 reference
Walter Helsper
9 October 2017
1992
2 references
Walter Helsper
9 October 2017
Walter Helsper
0 references
Identifiers
1 reference
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Wikipedia(1 entry)
- dewiki Walter Helsper
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Multilingual sites(1 entry)
- commonswiki Category:Walter Helsper