Add "Convolution theorem" and "Parseval's theorem"

1 files changed, 1 insertions, 1 deletions

diff --git a/latex/know/concept/dirac-delta-function/source.md b/latex/know/concept/dirac-delta-function/source.md
index cb98c41..4de0cfd 100644
--- a/latex/know/concept/dirac-delta-function/source.md
+++ b/latex/know/concept/dirac-delta-function/source.md
@@ -41,7 +41,7 @@ $$\begin{aligned}
 
 The last one is especially important, since it is equivalent to the
 following integral, which appears very often in the context of
-Fourier transforms:
+[Fourier transforms](/know/concept/fourier-transform/):
 
 $$\begin{aligned}
     \boxed{