diff --git a/pages/audio.noise.pollution.md b/pages/audio.noise.pollution.md
index 7cf3e1f..2651305 100644
--- a/pages/audio.noise.pollution.md
+++ b/pages/audio.noise.pollution.md
@@ -8,7 +8,13 @@ https://www.eea.europa.eu/en/advanced-search?q=noise+pollution&size=n_10_n&filte
 
 https://www.sciencedirect.com/topics/earth-and-planetary-sciences/noise-emission ?
 
-
+## See also
+- Noise pollution and violent crime
+	- https://www.sciencedirect.com/science/article/pii/S0047272722001505
+- Noise Pollution: _A Modern Plague_
+	- https://www.nonoise.org/library/smj/smj.htm
+- ..
+	- https://environmentalevidencejournal.biomedcentral.com/articles/10.1186/s13750-020-00202-y
 ## Attention
-- What bout notification sounds
+- What about notification sounds
 - What about portable speakers
\ No newline at end of file