diff --git a/pages.it/common/expand.md b/pages.it/common/expand.md
index 143b2bb7b5..d51a88d0fc 100644
--- a/pages.it/common/expand.md
+++ b/pages.it/common/expand.md
@@ -1,6 +1,7 @@
 # expand
 
 > Converti caratteri tab in spazi.
+> Maggiori informazioni: <https://www.gnu.org/software/coreutils/manual/html_node/expand-invocation.html>.
 
 - Converti tab in un file in spazi, scrivendo su standard output:
 
diff --git a/pages/common/expand.md b/pages/common/expand.md
index dee682a805..8100c9c5de 100644
--- a/pages/common/expand.md
+++ b/pages/common/expand.md
@@ -1,6 +1,7 @@
 # expand
 
 > Convert tabs to spaces.
+> More information: <https://www.gnu.org/software/coreutils/manual/html_node/expand-invocation.html>.
 
 - Convert tabs in each file to spaces, writing to standard output: