Multiple References

The multi-refs filter lets you have multiple references sections in a document. Useful for separating main manuscript references from supplemental references.

Basic usage

Place a div where you want references to appear:

<div class="multi-refs"></div>

References cited before this point will appear here. You can place multiple divs to create separate bibliography sections.

Example structure

# Main Manuscript

Here's a citation [@smith2020].

<div class="multi-refs"></div>

# Supplemental Material

Here's another citation [@jones2021].

<div class="multi-refs"></div>

Handling duplicate references

Control what happens when a reference appears in multiple sections:

---
multiref_no_duplicates: true
---

• false (default): List in both bibliographies (better for alphabetical styles)
• true: Only list in the first bibliography (better for numeric styles)

Command line usage

The filter works with any of these patterns:

# --citeproc before filter
pandoc --citeproc --lua-filter multi-refs.lua doc.md -o doc.pdf

# --citeproc after filter
pandoc --lua-filter multi-refs.lua --citeproc doc.md -o doc.pdf

# No --citeproc (filter handles internally)
pandoc --lua-filter multi-refs.lua doc.md -o doc.pdf

All three produce identical output.

Further reading

• Handling supplemental citations with pandoc