diff --git a/Help/command/file.rst b/Help/command/file.rst
index f46e55a056cf05dd2018b92dd907b22e932b7ece..d8113ea2c6fb4be093bc7087dce7b25f6bf56867 100644
--- a/Help/command/file.rst
+++ b/Help/command/file.rst
@@ -116,7 +116,8 @@ Parse a list of ASCII strings from ``<filename>`` and store it in
  binary while reading unless this option is given.
 
 ``REGEX <regex>``
- Consider only strings that match the given regular expression.
+ Consider only strings that match the given regular expression,
+ as described under :ref:`string(REGEX) <Regex Specification>`.
 
 ``ENCODING <encoding-type>``
  .. versionadded:: 3.1
diff --git a/Help/command/install.rst b/Help/command/install.rst
index 2259176d746ac454b79d4631ea225c5f39d4cbba..27c04b55a9e6cbeef14286c72ad4797b7c8305a2 100644
--- a/Help/command/install.rst
+++ b/Help/command/install.rst
@@ -540,7 +540,8 @@ any expression.  For example, the code
 
 will extract and install header files from a source tree.
 
-Some options may follow a ``PATTERN`` or ``REGEX`` expression and are applied
+Some options may follow a ``PATTERN`` or ``REGEX`` expression as described
+under :ref:`string(REGEX) <Regex Specification>` and are applied
 only to files or directories matching them.  The ``EXCLUDE`` option will
 skip the matched file or directory.  The ``PERMISSIONS`` option overrides
 the permissions setting for the matched file or directory.  For
diff --git a/Help/command/list.rst b/Help/command/list.rst
index 7accc5a39e1a839beddd58b9994ad699822b4dd8..f46641f0b6accaa950ad5b1cee18bb9645968f37 100644
--- a/Help/command/list.rst
+++ b/Help/command/list.rst
@@ -141,8 +141,8 @@ Appends elements to the list.
 Includes or removes items from the list that match the mode's pattern.
 In ``REGEX`` mode, items will be matched against the given regular expression.
 
-For more information on regular expressions see also the
-:command:`string` command.
+For more information on regular expressions look under
+:ref:`string(REGEX) <Regex Specification>`.
 
 .. _INSERT:
 
diff --git a/Help/manual/cmake-presets.7.rst b/Help/manual/cmake-presets.7.rst
index 57c8ccf3d08c562ad5405fae3147e144fb991e76..0bcd6910adb31fb79db7cf409dce3e240f8a06be 100644
--- a/Help/manual/cmake-presets.7.rst
+++ b/Help/manual/cmake-presets.7.rst
@@ -642,7 +642,8 @@ that may contain the following fields:
 
       An optional string specifying a regex for test names. Equivalent to
       passing ``--tests-regex`` on the command line. This field supports
-      macro expansion.
+      macro expansion. CMake regex syntax is described under
+      :ref:`string(REGEX) <Regex Specification>`.
 
 
     ``label``
diff --git a/Help/manual/ctest.1.rst b/Help/manual/ctest.1.rst
index 811997c55488a210ba6f8306a36f6567f3be74dc..72ef2597ad13d9bb73ce61a9b25c8056beed43e9 100644
--- a/Help/manual/ctest.1.rst
+++ b/Help/manual/ctest.1.rst
@@ -158,7 +158,8 @@ Options
      See `Show as JSON Object Model`_.
 
 ``-L <regex>, --label-regex <regex>``
- Run tests with labels matching regular expression.
+ Run tests with labels matching regular expression as described under
+ :ref:`string(REGEX) <Regex Specification>`.
 
  This option tells CTest to run only the tests whose labels match the
  given regular expression.  When more than one ``-L`` option is given,