diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000000000000000000000000000000000..b2094e7f5549dc72a9ec9594e0c7fdda4fd21e67
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,15 @@
+[submodule "doc_module_vitis"]
+	path = doc_module_vitis
+	url = http://vm09.veremes.net/Documentation/doc_module_vitis.git
+[submodule "doc_module_pdesi"]
+	path = doc_module_pdesi
+	url = http://vm09.veremes.net/Documentation/doc_module_pdesi.git
+[submodule "doc_module_signaletique"]
+	path = doc_module_signaletique
+	url = http://vm09.veremes.net/Documentation/doc_module_signaletique.git
+[submodule "doc_module_vmap"]
+	path = doc_module_vmap
+	url = http://vm09.veremes.net/Documentation/doc_module_vmap.git
+[submodule "doc_module_gtf"]
+	path = doc_module_gtf
+	url = http://vm09.veremes.net/Documentation/doc_module_gtf.git
diff --git a/doc_module_gtf b/doc_module_gtf
new file mode 160000
index 0000000000000000000000000000000000000000..84f0b86d9ab5024dffffcb66e5d484676b2d0c1e
--- /dev/null
+++ b/doc_module_gtf
@@ -0,0 +1 @@
+Subproject commit 84f0b86d9ab5024dffffcb66e5d484676b2d0c1e
diff --git a/doc_module_pdesi b/doc_module_pdesi
new file mode 160000
index 0000000000000000000000000000000000000000..1d96ee8c9662ee2abba37fae2c0984ba0c3967c8
--- /dev/null
+++ b/doc_module_pdesi
@@ -0,0 +1 @@
+Subproject commit 1d96ee8c9662ee2abba37fae2c0984ba0c3967c8
diff --git a/doc_module_signaletique b/doc_module_signaletique
new file mode 160000
index 0000000000000000000000000000000000000000..76dd93e5416ec4c1204762abe3c9a08ee01d7d46
--- /dev/null
+++ b/doc_module_signaletique
@@ -0,0 +1 @@
+Subproject commit 76dd93e5416ec4c1204762abe3c9a08ee01d7d46
diff --git a/doc_module_vitis b/doc_module_vitis
new file mode 160000
index 0000000000000000000000000000000000000000..058f00a7ae7d2642b5b8e0a34679011d29f21297
--- /dev/null
+++ b/doc_module_vitis
@@ -0,0 +1 @@
+Subproject commit 058f00a7ae7d2642b5b8e0a34679011d29f21297
diff --git a/doc_module_vmap b/doc_module_vmap
new file mode 160000
index 0000000000000000000000000000000000000000..c9dc1ddf744c1c7c19413907f2de898a78ca470c
--- /dev/null
+++ b/doc_module_vmap
@@ -0,0 +1 @@
+Subproject commit c9dc1ddf744c1c7c19413907f2de898a78ca470c