--- a/doc/book/en/B120-migration.en.txt	Tue Dec 23 10:45:38 2008 -0800
+++ b/doc/book/en/B120-migration.en.txt	Tue Dec 23 11:00:54 2008 -0800
@@ -1,5 +1,6 @@
 .. -*- coding: utf-8 -*-
 
+.. _migration:
 
 Migration
 =========

--- a/doc/book/en/B140-google-appengine.en.txt	Tue Dec 23 10:45:38 2008 -0800
+++ b/doc/book/en/B140-google-appengine.en.txt	Tue Dec 23 11:00:54 2008 -0800
@@ -1,6 +1,6 @@
 .. -*- coding: utf-8 -*-
 
-.. _contents:
+.. _gaecontents:
 
 ==========================
 Google AppEngine Datastore

--- a/doc/book/en/C013-cubicweb-ctl.en.txt	Tue Dec 23 10:45:38 2008 -0800
+++ b/doc/book/en/C013-cubicweb-ctl.en.txt	Tue Dec 23 11:00:54 2008 -0800
@@ -50,8 +50,7 @@
 specific Google AppEgine database, they are not available for now
 in cubicweb-ctl, but they are available in the instance created.
 
-[FIXME] - add link to gae install
-For more details, please see :ref:`` .
+For more details, please see :ref:`gaecontents` .
 
 Commands to launch instance
 ---------------------------
@@ -94,9 +93,14 @@
 ``cubicweb-ctl shell`` addon
 ----------------------------
 
-XXX
-[FIXME]
-Add list of commands available in cubicweb-ctl shell.
+This migration shell provides an interactive interface to all
+the migrations functions described in the chapter :ref:`migration`.
+
+Usage
+`````
+::
+  
+  ``cubicweb-ctl shell myapp``
 
 Examples
 --------