diff --git a/.gitmodules b/.gitmodules
new file mode 100644
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--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "docs/papers/coope"]
+	path = docs/papers/coope
+	url = git@gitorious.org:easejs/coope.git
diff --git a/docs/papers/coope b/docs/papers/coope
new file mode 160000
index 0000000..98583d0
--- /dev/null
+++ b/docs/papers/coope
@@ -0,0 +1 @@
+Subproject commit 98583d0e9f72a6e0af4117f013679fca1978f1da