diff --git a/tutorials/multiphase/LTSInterFoam/DTCHull/README b/tutorials/multiphase/LTSInterFoam/DTCHull/README
new file mode 100644
index 0000000000..b0a2c91c9d
--- /dev/null
+++ b/tutorials/multiphase/LTSInterFoam/DTCHull/README
@@ -0,0 +1,6 @@
+Reference:
+Duisburg Test Case (DTC)
+el Moctar, O., Shigunov, V., Zorn, T.,
+Duisburg Test Case: Post-Panamax Container Ship for Benchmarking,
+Journal of Ship Technology Research,
+Vol.59, No.3, pp. 50-65, 2012
diff --git a/tutorials/multiphase/interDyMFoam/ras/DTCHull/README b/tutorials/multiphase/interDyMFoam/ras/DTCHull/README
new file mode 100644
index 0000000000..b0a2c91c9d
--- /dev/null
+++ b/tutorials/multiphase/interDyMFoam/ras/DTCHull/README
@@ -0,0 +1,6 @@
+Reference:
+Duisburg Test Case (DTC)
+el Moctar, O., Shigunov, V., Zorn, T.,
+Duisburg Test Case: Post-Panamax Container Ship for Benchmarking,
+Journal of Ship Technology Research,
+Vol.59, No.3, pp. 50-65, 2012