diff --git a/cesium-integration.md b/cesium-integration.md
index a9bd68f..42cd738 100644
--- a/cesium-integration.md
+++ b/cesium-integration.md
@@ -51,4 +51,4 @@ This integration is developed in an open source layer built ontop of ol3js as ol
  * still preseve context synchronization
 * Smooth transition needs to know the elevation of the destination point of the camera
  * cesium provides an asynchronous method
- * cesium provides in a dev branch a specific method
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+ * cesium provides in a dev branch a specific method. TDB: WHERE?
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