diff --git a/2024/Postgres Backups and ZFS snapshots.md b/2024/Postgres Backups and ZFS snapshots.md
index 242e8c1..ef65f27 100644
--- a/2024/Postgres Backups and ZFS snapshots.md	
+++ b/2024/Postgres Backups and ZFS snapshots.md	
@@ -4,6 +4,7 @@
 * https://zrepl.github.io/v0.2.1/configuration/snapshotting.html#postgres-checkpoint-hook
 * https://www.postgresql.org/docs/16/wal-reliability.html
 * https://www.postgresql.org/docs/15/functions-admin.html
+* https://community.veeam.com/blogs-and-podcasts-57/data-backup-basics-i-why-snapshots-are-not-backups-understanding-the-differences-6074
 
 ```go
 func takeSnapshot(db *sql.DB, dataset string, height int, tag string) error {