Such letters should therefore be not merelyindexed under the name of the writer, but a second andpossibly a third and fourth card should be made outunder subject or place.
5 Matching Annotations
- Jun 2026
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The card systemis a " one-place " system.
How does the "one-place" system work with respect to the idea of "multiple storage"?
What about cross-indexing?
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- Jan 2026
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niklas-luhmann-archiv.de niklas-luhmann-archiv.de
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The cross-referencing technique solves all organizational problems. Misplacements must be corrected by cross-referencing, not by rearranging.
This is particularly true when other cross references on paper can't easily be found and fixed the way they might be in digital form. Creating a pointer to the correct location is the quickest and most efficient method for fixing a mis-filing on paper.
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- Dec 2025
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Local file Local file
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is essential in subject work becausesome subjects are closely related andyet not sufficiently so to be filed to-gether.
The use of the cross reference sheet
A portion of the reason why Luhmann chose a duplex numeric filing system for his zettelkasten.
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Local file Local file
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ne of the chief drawbacks in using the Alpha-betic and Numeric systems in conjunction with asubject file is that in handling a large amount ofmaterial a great deal of cross referencing has tobe done, causing much extra labor and filling upthe files.
drawbacks of alphabetic and numeric systems with respect to cross referencing
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