diff --git a/content/material/Fileformat.adoc b/content/material/Fileformat.adoc
new file mode 100644
index 00000000..4422ec6e
--- /dev/null
+++ b/content/material/Fileformat.adoc
@@ -0,0 +1 @@
+= File format
\ No newline at end of file
diff --git a/content/material/Introduction.adoc b/content/material/Introduction.adoc
new file mode 100644
index 00000000..7eb0fdcd
--- /dev/null
+++ b/content/material/Introduction.adoc
@@ -0,0 +1 @@
+= Introduction
\ No newline at end of file
diff --git a/content/material/Material-parameters.adoc b/content/material/Material-parameters.adoc
new file mode 100644
index 00000000..b57b2fa7
--- /dev/null
+++ b/content/material/Material-parameters.adoc
@@ -0,0 +1 @@
+= Material parameters
\ No newline at end of file
diff --git a/content/material/Metadata.adoc b/content/material/Metadata.adoc
new file mode 100644
index 00000000..c9a3581c
--- /dev/null
+++ b/content/material/Metadata.adoc
@@ -0,0 +1 @@
+= Metadata
\ No newline at end of file
diff --git a/content/material/general-structure-index.adoc b/content/material/general-structure-index.adoc
new file mode 100644
index 00000000..630c7170
--- /dev/null
+++ b/content/material/general-structure-index.adoc
@@ -0,0 +1,6 @@
+= Material
+
+include::Introduction.adoc[leveloffset=+1]
+include::Fileformat.adoc[leveloffset=+1]
+include::Metadata.adoc[leveloffset=+1]
+include::Material-parameters.adoc[leveloffset=+1]