diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..970f51c
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "cA_analysis"]
+	path = cA_analysis
+	url = git@kuhl-mann.de:lattice/cA_analysis.git
+	datalad-id = 2b31f143-652d-45b2-ab3e-cc430c43622b
diff --git a/cA_analysis b/cA_analysis
new file mode 160000
index 0000000..af344f1
--- /dev/null
+++ b/cA_analysis
@@ -0,0 +1 @@
+Subproject commit af344f1f55496eb05232ac7bc497a2100682d792