| Date of Publication of the Item: 1. - 2.1931 | Periodical Item Number: 25 |
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| Date of Publication of the Item: 3. - 4.1931 | Periodical Item Number: 26 |
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| Date of Publication of the Item: 5. - 6.1931 | Periodical Item Number: 27 |
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| Date of Publication of the Item: 7. - 8.1931 | Periodical Item Number: 28 |
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| Date of Publication of the Item: 9. - 10.1931 | Periodical Item Number: 29 |
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| Date of Publication of the Item: 11. - 12.1931 | Periodical Item Number: 30 |
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| Date of Publication of the Item: 11. - 12.1931 | Periodical Item Number: 31 |
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