Missing documents from zbMATH Open

[physikerwelt]

Describe the bug
when trying to match articles and software I get the impression that the following documents are availible in zbMATH Open but are missing in MaRDI

missingDE.csv

Expected behavior
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To Reproduce
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1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Screenshots
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Additional context
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Checklist for this issue:
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• Assignee has been set for this issue
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• the main MaRDI project has been assigned as project