diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..3ebb950
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "edi_energy_mirror"]
+	path = edi_energy_mirror
+	url = https://github.com/Hochfrequenz/edi_energy_mirror
+[submodule "machine-readable_entscheidungsbaumdiagramme"]
+	path = machine-readable_entscheidungsbaumdiagramme
+	url = https://github.com/Hochfrequenz/machine-readable_entscheidungsbaumdiagramme/
diff --git a/edi_energy_mirror b/edi_energy_mirror
new file mode 160000
index 0000000..b194a17
--- /dev/null
+++ b/edi_energy_mirror
@@ -0,0 +1 @@
+Subproject commit b194a17df7ed66d7721e614634d6bb4e8d4fd0f5
diff --git a/machine-readable_entscheidungsbaumdiagramme b/machine-readable_entscheidungsbaumdiagramme
new file mode 160000
index 0000000..98937e3
--- /dev/null
+++ b/machine-readable_entscheidungsbaumdiagramme
@@ -0,0 +1 @@
+Subproject commit 98937e3b64dbb627aa3824e1109fb80ee3109e1d