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-rw-r--r--source/know/concept/matsubara-sum/index.md2
1 files changed, 1 insertions, 1 deletions
diff --git a/source/know/concept/matsubara-sum/index.md b/source/know/concept/matsubara-sum/index.md
index 8b903d4..aef8379 100644
--- a/source/know/concept/matsubara-sum/index.md
+++ b/source/know/concept/matsubara-sum/index.md
@@ -36,7 +36,7 @@ $$\begin{aligned}
= \sum_{z_p} e^{z_p \tau} \: \underset{z \to z_p}{\mathrm{Res}}\big( g(z) h(z) \big)
\end{aligned}$$
-Where we have applied the residue theorem
+Where we have applied the [residue theorem](/know/concept/residue-theorem/)
to get a sum over all simple poles $$z_p$$
of either $$g$$ or $$h$$ (but not both) enclosed by $$C$$.
Clearly, we could make this look like a Matsubara sum,