Possible Clues:

• From the same source
• Footnoter's "ditto," briefly
• In the same source
• In brief, notation meaning in came book or passage
• Referential abbr.
• Footnote indicating "as previously cited"
• 'In the same place as previously mentioned, in short (4)'
• It's always in the same place in footnotes
• Briefly, in the same book or passage
• I want the lot presumably in the same place